Ezflow Drainage Systems Design and Installation Manual

This manual is for the EZflow product, but the same principles apply to EZ-Drain. EZ flow Drainage Systems ® Design and Installation Manual EZfl0w

INTRODUCTION 2

COMPONENT SPECS 3

PIPE

AGGREGATE

MESH

USAGE GUIDELINES 4

APPLICATIONS 5

FRENCH DRAIN 6

INTERCEPTOR DRAIN 8

CURTAIN DRAINS9

LANDSCAPE DRAINS 10

GOLF COURSE DRAINS 11

FOUNDATION DRAINS 12

RETAINING WALL DRAINS 13

ROOF RUNOFF DRAINS 14

BASEMENT/CRAWLSPACE DEWATERING 15

WARRANTY 16

1 Contact NDS at 1-800-726-1994 for additional information. JULY 2010 INTRODUCTION INTRODUCTION INTRODUCTION

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The15" required 10-inch by and code15" 15-inch 15"or other bundles requirement,internal are15" available15" tees, the and pipe with internal can the15" bepipe wyes. either located The centered 10-inch in the center orand at 15-inchthe or bottombottom bundles of the are bundle available with the pipe located in the center or bottom of the bundle NO PIPE 6" PIPE 6" PIPE NO PIPE 3" PIPE please contactthe pleasebundle. EZflow contactfor Illustrationsby varying Infiltrator EZ applications.flow shown atby 1-800-221-4436 Infiltratorherein Unless are at generic 1-800-221-4436specifically or your and local may required showsales or your by eitherrepresentative. code local configuration. foror sales othervarying representative. requirement, applications. the Unless pipe can specifically be either required centered by or code at the or bottom other requirement,of the pipe can be either centered or at the bottom of EZflow drainage (BOTTOM)products must be(CENTERED) used in conjunction with manufacturer’s(CENTERED) instructions and local and/or state code. theNO bundle. PIPE Illustrations6" PIPE shown herein are6" genericPIPE and mayNO show PIPEtheNO eitherbundle. PIPE3" configuration. PIPE Illustrations6" PIPE shown herein are6" genericPIPE and mayNO show PIPE either3" configuration. PIPE (BOTTOM) (CENTERED) (CENTERED)(BOTTOM) (CENTERED) (CENTERED) EZflow drainage7-inchEZ productsflow Bundlesdrainage must products be used mustin conjunction be usedNO PIPE inwith conjunction manufacturer’s10-inchNO PIPE 6"with PIPE Bundles manufacturer’s instructions6" PIPE6" and PIPE instructions local and/or6" and PIPE state local code. and/or state code. 7-inch Bundles (BOTTOM)10-inch7-inch(BOTTOM) Bundles(CENTERED) Bundles (CENTERED) 10-inch Bundles 701A-MESH 701F-MESH 1001-A-MESH 1001-FB-MESH 1001F-MESH EZ Drainage Products flow 701A-MESH 701F-MESH 1001-A-MESH701A-MESH1001-FB-MESH701F-MESH1001F-MESH 1001-A-MESH 1001-FB-MESH 1001F-MESH EZflow EZflow Drainage ProductsDrainage Products 701A-MESH 701F-MESH701A-MESH 701F-MESH 1501-A-MESHEZ1501-A-MESH7"flow1501-FB-MESH drainage7" bundles1501-FB-MESH1501-FC-MESH are 10 feet in length1501-FC-MESH with a slotted10" pipe surrounded10" by expanded10" polystyrene aggregate and enclosed in geotextile mesh. Configurations are available in 7-inch bundles with or without a 3-inch pipe, 10-inch bundles with or without a 4-inch pipe, EZflow drainageEZ bundlesflow drainage are7" 10 bundles feet in lengthare7" 10 withfeet ain slotted length pipewith asurrounded slotted pipe by surrounded expanded10" 7" polystyreneby expanded10" 7" aggregate polystyrene10" and aggregate enclosed inand enclosed10" in 10" 10" geotextile mesh.geotextileand Configurations 15-inch mesh. bundles Configurationsare with available or without in are 7-inch a available 6-inch bundles pipe. in 7-inch Accessorieswith or bundles without include witha 3-inch or3-inch, without pipe, 4-inch, 10-incha 3-inch and bundles 6-inchpipe, 10-inchinternal with or couplers,bundles without with aend 4-inch orcaps. without EZflow a 4-inch 7" 7"7" 7" pipe,15" and 15-inchpipe,bundlesNO15" bundles PIPEand15" can 15-inch alsowith3" bePIPEor bundles usedwithout15" 15"with witha internal6-inch or without pipe.tees,15" andaAccessories 6-inch internal pipe. wyes. includeNO Accessories PIPEThe 3-inch, 15-inch include 4"4-inch, bundles PIPE 3-inch,and are 6-inch available 4"4-inch, PIPE internal withand the 6-inchcouplers, pipe internal located end caps couplers,in the, center end or caps , internal tees, andinternalbottom internal oftees, thewyes. NOand bundle(CENTERED) PIPEThe internal for10-inch varying wyes.3" PIPE and applications.The 15-inch 10-inch bundles andUnless 15-inch are specifically available bundles withrequired are the NOavailable pipePIPE(BOTTOM)by NOcode located withPIPE or the4"other in PIPE pipethe(CENTERED)3" requirement, PIPEcenter located or4" inbottom PIPE the centerpipe of thecan or bundle bottombe either of centered the bundleNO or PIPE 4" PIPE 4" PIPE for varying applications.forat thevarying bottom Unless applications. of the specifically bundle. Unless(CENTERED) Illustrations required specifically by shown code required herein or other areby requirement,codegeneric or and other maythe requirement, pipeshow can either be(BOTTOM) the configuration. either pipe(CENTERED) centered can be(CENTERED) either or at thecentered bottom or of at the bottom of (BOTTOM) (CENTERED) theNO bundle. PIPE IllustrationstheNO bundle. PIPE6" PIPE shown Illustrations herein6" arePIPE shown6" genericPIPE herein and are 6"may genericPIPENO show PIPE andeither may3" configuration. NOPIPE show PIPE either3" configuration. PIPE (BOTTOM) (BOTTOM)(CENTERED) (CENTERED) (CENTERED) (CENTERED) 15-inch Bundles 7-inch Bundles7-inch1001-A-MESH Bundles1001-FB-MESH 1001F-MESH10-inch Bundles10-inch Bundles 15-inch1001-A-MESH Bundles1001-FB-MESH 1001F-MESH 15-inch1001-A-MESH Bundles1001-FB-MESH 1001F-MESH 1501-A-MESH 1501-FB-MESH 1501-FC-MESH 701A-MESH 701F-MESHEZ-0701A701A-MESH 701F-MESH EZ-0701F 1001-A-MESH 1001-FB-MESH1001-A-MESHEZ-1001A 1001-FB-MESH1001F-MESHEZ-1001F 1001F-MESH 10" 1501-A-MESH10" 1501-FB-MESH10" 1501-FC-MESH 1501-A-MESH 1501-FB-MESH 1501-FC-MESH 10" 10" 10" 10" 10" 10" 15" 15" 15" 7" 7"7" 7" 10" 10" 10" 10" NO PIPE 15" 4" PIPE 4"15" PIPE 15" 15" 15" 15" NO PIPE(BOTTOM) 4" PIPE(CENTERED)4" PIPE NO PIPE 4" PIPE 4" PIPE NO PIPE 6" PIPE 6" PIPE (BOTTOM) (CENTERED) (BOTTOM) (CENTERED) NO PIPE NO4" PIPE PIPE 4" PIPE 4" PIPE NO PIPE 3" NOPIPE PIPE NO3" PIPEPIPE(BOTTOM) 6" PIPE (CENTERED)6" PIPE NO PIPE 6" PIPE 6" PIPE (BOTTOM) (CENTERED)(BOTTOM) (CENTERED) (CENTERED) (CENTERED) (BOTTOM) (CENTERED) (BOTTOM) (CENTERED)

Accessories 701A-MESH 701F-MESH 15-inch Bundles15-inch BundlesAccessories Accessories 1001-A-MESH 1001-FB-MESH1001-A-MESH701A-MESH1001-FB-MESH1001F-MESH701F-MESH1001F-MESH 701A-MESH 701F-MESH EZ-1501A EZ-1501FB EZ-1501 1501-A-MESH 1501-A-MESH7" 1501-FB-MESH7" 1501-FB-MESH1501-FC-MESH 1501-FC-MESH 10" 10" 7" 10" 7" 10" 7" 7" End Cap 15" NO15" PIPE15" 3" PIPE15" 15" 15" EndEnd Cap Elbow End Cap NO PIPE NO4" PIPE PIPE NO(CENTERED) PIPE4" PIPE 3" PIPE4" PIPE NO PIPE 3" PIPE (BOTTOM)Coupler (CENTERED)(BOTTOM)(CENTERED)(CENTERED) Wye (CENTERED) Elbow Elbow NO PIPE NO PIPE6" PIPE 6" PIPE6" PIPETee 6" PIPE Wye Wye (BOTTOM)Coupler(BOTTOM)(CENTERED) (CENTERED)Tee CouplingCoupler Tee 1001-A-MESH 1001-FB-MESH 1001F-MESH 1001-A-MESH 1001-FB-MESH 1001F-MESH 1001-A-MESH 1001-FB-MESH 1001F-MESH AccessoriesAccessories 701A-MESH 2 701F-MESH701A-MESH 701F-MESH Page10"Contact 2 NDS 10" at 1-800-726-1994 10" for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page10" 2 10" 10" Page 10" Contact2 Infiltrator 10" Systems at 1-800-221-4436 10" for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. 7" 7"7" 7" NO PIPE 4" PIPE 4" PIPE NO PIPE(BOTTOM) 4" PIPE(CENTERED)4" PIPE NO PIPE 4" PIPE 4" PIPE (BOTTOM) (CENTERED) End Cap End Cap(BOTTOM) (CENTERED) NO PIPE 3" NOPIPE PIPE 3" PIPE (CENTERED) (CENTERED) Elbow Elbow Coupler Coupler Tee Tee Wye Wye

1001-A-MESH 1001-FB-MESH1001-A-MESH 1001-FB-MESH1001F-MESH 1001F-MESH

Page10" 2 Page 10" 2 10" 10" Contact Infiltrator Contact Systems Infiltrator at 1-800-221-4436 Systems at for1-800-221-4436 additional information. for additional information.

NO PIPE NO4" PIPE PIPE 4" PIPE 4" PIPE (BOTTOM) (CENTERED)(BOTTOM) (CENTERED) COMPONENT SPECS ® EZfl0w

Slotted Drain Pipe

The black, single-wall, corrugated EZflow drainage pipe is constructed of polyethylene resins with a high recycled content, typically greater than 90%. Nominal 3-inch diameter pipe is utilized in the 7-inch bundle, 4-inch pipe in the 10-inch bundle, liGhtweiGht expAnded polystyrene and 6-inch pipe in the 15-inch bundle. Slots are punched during AGGreGAte offers structurAl extrusion of the pipe, slot orientation is “random” and pipe rotation inteGrity And resists compAction within each bundle is inconsequential to drainage system function. The pipe is aligned either along the center axis or touching bottom edge of the bundle, depending upon application enGineered flow chAnnels and code requirements. EZflow drainage pipe meets ASTM F405 increAse void spAce creAtinG Standard Specification for Corrugated Polyethylene (PE) Pipe and improved wAter flow And Fittings. A roughness coefficient of 0.015 (Manning’s “n”) should GreAter storAGe be used in flow calculations for 3- to 6-inch corrugated polyethylene pipe with a corrugated interior.

Geosynthetic Aggregate

The blue geosynthetic EZflow drainage aggregate is manufac- 30 sieve tured from 100% recycled materials. Made from expanded Geotextile mesh polystyrene (EPS), the aggregate beads have a fine to medium cell structure and two sizes are utilized; the smaller in the 7-inch bundles and the larger in the 10- and 15-inch bundles. Both beads are cubical and have protuberances that provide increased pore space and flow characteristics for drainage applications. For storage applications, a porosity of 40% is recommended for consolidated EPS aggregate within the bundle.

Geotextile Mesh The black, knit geotextile mesh sock holds the EZflow drainage bundle together. The 30-sieve geotextile mesh fabric used for the Geosynthetic sock provides appropriate permeability for drainage while limiting AGGreGAte the migration of soils into the bundle and drainage system. The geotextile mesh has an apparent opening size of 0.60 mm, a unit weight between 2.5 to 3.5 ounces per square yard, and strength of 100 pounds per square inch in accordance with ASTM D-3786. The flow rate through the geotextile mesh, as provided by the manufacturer, is 300 gallons/square foot/minute at 3 inches of head 3”, 4” or 6” slotted pipe in accordance with ASTM D-4491.

3 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 3 USAGE GUIDELINES USAGE GUIDELINES

Usage Guidelines Usage Guidelines SAFE HANDLING IndividualSAFE HANDLING EZflow drainage bundles are 10 feet in length and range in weight from 2 pounds for the 7-inch aggregate-only bundles to 13 Individualpounds for EZ theflow 15-inchdrainage bundles bundles with arepipe. 10 Several feet in length bundles and are range wrapped in weight together from in 2 clearpounds plastic for the for 7-inchshipping. aggregate-only The clear plastic bundles wrapping to 13 mustpounds not for be the installed 15-inch along bundles with withthe bundlepipe. Several and should bundles be removed are wrapped prior togetherto installation in clear and plastic disposed for shipping. of properly. The clear plastic wrapping must not be installed along with the bundle and should be removed prior to installation and disposed of properly. BENDS AND CORNERS BENDS AND CORNERS EZflow drainage aggregate-only bundles can bend around and into most corners with ease. Bundles with pipe require appropriate pipe EZcouplersflow drainage and elbows aggregate-only to accommodate bundles ninety-degree can bend around bends. and into most corners with ease. Bundles with pipe require appropriate pipe couplers and elbows to accommodate ninety-degree bends. PIPE CONNECTIONS BundlesPIPE CONNECTIONS with pipe require couplers to make connections between bundles and other system piping components. Insert the appropriately Bundlessized coupler with pipe into requirethe EZ flowcouplers bundle to untilmake the connections coupler clicks between into place,bundles insert and theother remaining system piping coupler components. end into the Insert next bundle the appropriately or system sizedcomponent coupler and into click the EZ intoflow place bundle to until finish the this coupler connection. clicks into Connections place, insert to the cleanouts, remaining catch coupler basins, end into manholes the next and bundle other or system componentscomponent andmay clickrequire into gaskets place or to the finish use thisof grout connection. to form soil Connections tight and watertight to cleanouts, seals catchas needed. basins, manholes and other system components may require gaskets or the use of grout to form soil tight and watertight seals as needed. REDUCING BUNDLE LENGTH REDUCING BUNDLE LENGTH If a ten-foot EZflowbundle length is not required, the bundle can be cut and retied to the desired length with the original tie, wire or duct Iftape, a ten-foot and the EZ excessflowbundle beads length can beis notplaced required, in the the excavation. bundle can Bundle be cut length and retied can be to reducedthe desired as follows:length with the original tie, wire or duct tape, and the excess beads can be placed in the excavation. Bundle length can be reduced as follows: First, measure the desired length plus one-half the product diameter from one end of the bundle. First, measure the desired length plus one-half the product diameter from one end of the bundle. Second, cut the mesh around the bundle circumference at the measured distance, remove excessive EPS aggregate from mesh and Second,place the cut excess the mesh EPS aggregatearound the in bundle the trench. circumference at the measured distance, remove excessive EPS aggregate from mesh and place the excess EPS aggregate in the trench. Third, twist the mesh until the EPS aggregate is held firmly inside the bundle and secure the mesh. If the bundle has a pipe, gather the meshThird, againsttwist the the mesh pipe until until the the EPS aggregate aggregate is held is held firmly firmly in place, inside secure the bundle mesh and into secure place, the apply mesh. a zip If tiethe and bundl tighten.e has a pipe, gather the mesh against the pipe until the aggregate is held firmly in place, secure mesh into place, apply a zip tie and tighten. Lastly, for a bundle with pipe trim any excess pipe down to the desired length. Lastly, for a bundle with pipe trim any excess pipe down to the desired length.

INSTALLATION IN FINE-GRAINED SOILS IfINSTALLATION a system needs IN to FINE-GRAINEDbe installed in soils SOILS that have more than 50% by content silt or clay particles, a secondary fabric with the appropriate Ifapparent a system opening needs to size be toinstalled match insoil soils conditions that have should more thanbe w 50%rapped by aroundcontent thesilt orcircumference clay particles, of a the secondary system. Anfabric engineer with the or appropriate landscape architectapparent shouldopening be size consulted to match to soildetermine conditions the appropriateshould be wrapped fabric for around such conditions. the circumference of the system. An engineer or landscape architect should be consulted to determine the appropriate fabric for such conditions. PRODUCT STORAGE PRODUCT STORAGE EZflow drainage products should not be exposed to direct sunlight for periods exceeding 60 days as the mesh fabric may become EZcompromisedflow drainage and products yellowing should of the not aggregate be exposed has beento direct observed. sunlight It foris recommended periods exceeding that EZ 60flow days drainage as the meshproducts fabric be maystored become inside andcompromised away from and direct yellowing sunlight. of Product the aggregate should behas covered been obs securelyerved. Itwith is recommendeda light-blocking that tarp EZ if storedflow drainage outside products for extended be stored periods. inside and away from direct sunlight. Product should be covered securely with a light-blocking tarp if stored outside for extended periods. STRUCTURAL CAPABILITY STRUCTURAL CAPABILITY EZflow drainage systems are designed for use in residential and light commercial non-traffic drainage applications. EZflow drainage systemsEZflow drainage are designed systems to withstandare designed single for pass use constructionin residential wheel and light loading commercial and occasional non-traffic light drainage vehicular applications. load of up toEZ 16,000flow drainage lbs per systemsaxle provided are designed the product to withstand is installed single in a pastrenchs construction with 12” of compactedwheel loading fill placedand occasional over the lightbundles. vehicular EZflow loaddrainage of up to systems 16,000 lbsare pernot axledesigned provided to be the placed product under is installed live-load in traffic a trench conditions with 12” such of compacted as paved or fill non-paved placed over roadways, the bundles. driveways, EZflow ordrainage parking areas.systems are not designed to be placed under live-load traffic conditions such as paved or non-paved roadways, driveways, or parking areas.

Page 4 Contact Infiltrator Systems at 1-800-221-4436 for additional information. 4 PageContact 4 NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

Applications

Interceptor or Curtain Foundation Roof Runoff Landscape French Drain Retaining Wall

EZflow drainage systems are appropriate for a wide range of applications and are a convenient alternative to traditional stone and pipe drainage, storage and infiltration systems. EZflow drainage systems can be used as a substitute for stone in most applications where the stone is not utilized for structural support. When stone does serve as structural support, such as a base course in a roadway or backfill in a mechanically-stabilized-earth retaining wall, EZflow should not be used. A professional engineer, landscape architect or other qualified design professional should be consulted for complex applications.

Product selection is relative to the desired application and benefits from establishing anticipated flow into, through and out of a proposed drainage system configuration. Selection considerations include: bundle sizing and storage volume, the presence or absence of pipe, pipe size and location within the bundle, and arrangement of bundles. Design factors may include: length of system, watershed area, soil type and permeability, groundwater levels and system discharge opportunities. EZflow drainage storage volumes and pipe discharge rates are listed below. Basic product selection, system configuration considerations and installation methods are discussed in each application description that follows.

Storage and Flow for EZflow Drainage Bundles (45% void space amongst consolidated EPS aggregate) Aggregate-Only Bundles Pipe Bundles Storage Volume Flow Capacity Storage Volume Flow Capacity Product Product (gallons/10-ft bundle) (gpm/ft @ 1% slope) (gallons/10-ft bundle) (gpm/ft @ 1% slope) EZ-0701A701-A 8.8 37.1 EZ-0701F701-F 11.4 80.8 EZ-1001A1001-A 17.2 75.7 1001-F/1001-FBEZ-1001F 21.5 130.9 EZ-1501A1501-A 36.5 170.3 EZ-1501F/EZ-1501FB1501-F/1501-FB 45.8 345.0

5 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 5 APPLICATIONS

French Drains Subsurface drainage systems have been in common use for centuries. They take many forms, but are all similar in design and function to the traditional French drain. French drains are excavated trenches filled with aggregate surrounding a slotted or perforated pipe that conveys excess surface and groundwater to a discharge point away from the drainage area. EZflow drainage products can be used as a substitution for conventional aggregate in French drain systems.

PLACEMENT EZflow drainage French drains should be laid out strategically to dewater irregular, poorly drained areas. A defined pattern such as a herring bone and gridiron should be used to drain complete areas including lawns, athletic fields, golf course greens and sand traps. These patterns include laterals that drain to collectors that discharge to an outfall. In general, laterals should not be longer than 50 feet and collectors no longer than 100 feet without increasing the pipe diameter downstream. In addition, the slope of each downgradient run should increase throughout the length of the system. Trench depth and spacing will vary depending on soil texture of the area being drained. Trench depth can also be limited by outlet conditions in flatter areas. Lines may be spaced widely and deeply in sandy soils, and are generally placed shallower and closer together in clay soils.

IRREGULAR GRIDIRON HERRING BONE

DRAINAGE AREA

OBSTRUCTION

PRODUCT The 7-inch EZflowdrainage bundles with integrated 3-inch pipe are appropriate for small area residential subsurface drainage systems. 10-inch bundles with 4-inch pipe can be used to drain areas of up to two acres in poorly drained organic soils. In larger areas or if there is over 200 feet of pipe upstream, the 15-inch bundles with 6-inch pipe are recommended.

TYPICAL FRENCH DRAIN ALTERNATE CONFIGURATIONS TYPICAL FRENCH DRAIN ALTERNATE CONFIGURATIONS MINIMUMMINIMUM 6 6INCHES INCHES PERMEABLEPERMEABLEMINIMUM 6 BACKFILL BACKFILLINCHES CROWN TRENCH PERMEABLE BACKFILL CROWNTO PREVENT TRENCH VEGETATIVE TOSADDLING PREVENT VEGETATIVECOVER SADDLING EZ ow COVER EZ AGGREGATE ow AGGREGATEONLY BUNDLE ONLY BUNDLE EZ ow EZ AGGREGATE ow EZ ow BUNDLE AGGREGATEONLY BUNDLE EZ ow BUNDLE EZ ow BUNDLE ONLY BUNDLE EZ ow BUNDLE WITH PIPE WITH PIPE WITH PIPE EZ ow BUNDLE WITH PIPE EZ owWITH BUNDLE PIPE NATIVE SOIL WITH PIPE NATIVE SOIL Minimum Recommended Depth of Cover* Condition Depth (in.) FRENCH DRAIN IN CLAY SOILS FRENCH DRAIN IN CLAY SOILS Residential area, commercial lawn mowers 6** CROWN TRENCH CROWNTO PREVENT TRENCH MINIMUM 4 INCHES Athletic fields with consistent activity 8 TO SADDLINGPREVENT MINIMUMBACKFILL 4 IN INCHES SADDLING BACKFILLLOW-PERMEABILITY IN Areas with occasional light vehicular traffic 12 VEGETATIVE LOW-PERMEABILITY VEGETATIVE CLAY SOILS COVER CLAY SOILS COVER * It is recommended that EZflow drainage systems be installed a minimum of 6 inches below existing or planned subsurface EZ ow BUNDLE irrigation lines. EZ owWITH BUNDLE PIPE ** In low-permeability clay soils, trenches can be placed with WITH PIPE HEAVY CLAY SOIL a minimum 4 inches of permeable backfill. HEAVY CLAY SOIL

6 PageContact 6 NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

APPLICATIONSFrench Drain Installation Instructions ® EZfl0w The steps below offer typical installation practices for French drains and will vary based on site conditions. These practices are also applicable to landscape plant bed drains and for wet areas on golf courses. 1.FrenchIdentify the Drain area to be Installation drained and mark Instructionsoff lateral and collector lines before digging beginning trench excavation. The steps below offer typical installation practices for French drains and will vary based on site conditions. These practices are also 2.applicableStart excavating to landscape the trench plant bedat the drains discharge and for point wet orareas where on connectionsgolf courses. to downstream piping will be made. Trench width should be equal to the diameter of the bundle being used. Trench depth will reflect existing1. Identify terrain, the area desired to be drainagedrained and line mark slope off and lateral length, and heightcollector of linesbundles(s) before anddigging required beginning cover trench thick- ness.excavation. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom evenly for proper flow. 2. Start excavating the trench at the discharge point or where connections to downstream piping will be made. Trench width should be equal to the diameter of the bundle being used. Trench depth will reflect existing terrain, desired drainage line slope and length, height of bundles(s) and required cover thick- ness. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom evenly for proper flow.

3. Place the EZflow drainage bundle with pipe end to end along the edge of the trench. Use an end cap at the system high point and fully insert the proper couplings at all bundle-to-bundle connections. Lay the connected bundles with pipe in trench, stacking aggregate-only bundles above these bundles as needed.

3.4. Place thea minimum EZflow drainageof 4-inches bundle permeable with pipe backfill end to(see end recommended along the edge depths of the of trench. cover Useon page an end 6) overcap theat the bundles system without high point compaction. and fully Additional insert the sand/backfill proper couplings can be at placed all bundle-to-bundle and compacted connections. normally above Lay the lconnectedoose fill to preventbundles trench with pipe saddling. in trench, Cover stacking trench aggregate-onlywith sod or topsoil bundles and seed above to finishthese installation.bundles as needed.

4. Place a minimum of 4-inches permeable backfill (see recommended depths of cover on page 6) over the bundles without compaction. Additional sand/backfill can be placed and compacted normally above the loose fill to prevent trench saddling. Cover trench with sod or topsoil and seed to finish installation.

Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 7

7 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 7 APPLICATIONS

Interceptor Drains An interceptor drain is a type of French drain that collects surface water moving downhill and/or groundwater moving horizontally in the soil above an impervious or low-permeability layer. These drains prevent runoff and seepage from slopes onto areas below.

PLACEMENT Interceptor drains should run along a contour above the area which is intended to be kept free from seepage and runoff. Interceptor drain trenches should penetrate one-half of an EZflow bundle diameter into the impervious layer below the water table, extend the length of the existing seepage line and run to daylight at a code-compliant outfall.

PRODUCT The 10-inch EZflow drainage bundles with integrated 4-inch pipe are appropriate for most interceptor drain situations. In conditions of excessive surface runoff or groundwater, or if there is over 200 feet of drain line, the 15-inch bundles with 6-inch pipe are recommended.

COARSE SAND OR PERVIOUS MATERIAL BACKFILL, 6 IN. MIN. SURFACE RUNOFF

BERM DOWNHILL SIDE OF TRENCH IN AREAS OF HIGH SURFACE RUNOFF GROUNDWATER MOVEMENT THROUGH IMPERMEABLE PERVIOUS SEEPAGE LINER IF NECESSARY SOILS (WEEP) LINE AGGREGATE-ONLY BUNDLES, STACK AS NEEDED WET AREA (TRENCH DEPTH VARIES) IMPERVIOUS LAYER

CLAY, HARDPAN, ROCK, ETC. EZ ow BUNDLE WITH PIPE - PIPE CENTER AT OR BELOW RESTRICTIVE LAYER ELEVATION

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for interceptor drains and will vary based on site conditions. 1. Identify and mark off a hillside contour parallel with the slope to intercept surface water runoff. Lay the system out to allow for at least two feet in elevation above the impervious layer causing a downgradient groundwater seep.

2. Start excavating the trench at the discharge point or where connections to downstream piping will be made. The trench width should be equal to the diameter of the bundle being used. The trench depth should be deep enough to excavate one-half of a bundle diameter into the impervious layer. It may be desirable to create a small soil berm on the downhill side of the trench in areas of high surface flow to encourage runoff infiltration into the drain. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom to promote the flow of collected water.

3. Place the EZflow drainage bundles with pipe end to end along the edge of the trench. Fully insert the proper couplings at all system connections. An impervious liner may also be installed the full depth on the downhill side of the trench to further control seepage below. Lay the connected bundles with pipe in the trench, stacking aggregate-only bundles above the pipe-containing bundles as needed.

4. Place a minimum of 6 inches of permeable backfill over the bundles without compaction. Additional sand/backfill can be placed and compacted normally above the loose fill to prevent trench saddling. Cover trench with sod, sand or topsoil and seed to finish installation.

8 PageContact 8 NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

Curtain Drains A curtain drain is a type of French drain that collects and diverts groundwater and surface runoff away from an area of concern, such as a septic system drainfield. For a drain field, curtain drains are useful in controlling groundwater conditions that may compromise system function. EZflow curtain drain systems can help preserve the proper functioning of septic system drainfields.

PLACEMENT Curtain drain configuration, discharge, installation depth and horizontal setback from septic system drainfields vary based upon local conditions. Curtain drains can be placed deeply to collect and divert groundwater, shallower for controlling surface runoff, or in both configurations as needed. An observation port may be installed to monitor curtain drain function. An impervious liner may also be installed on the curtain drain trench sidewall as needed.

PRODUCT Product selection will vary depending on applicable codes and the amount of water to be collected and diverted. The 10-inch EZflow drainage bundles with integrated 4-inch pipe are suitable for most curtain drain applications. For longer systems over 200 feet in length the 15-inch bundles with 6-inch pipe are recommended.

SURFACE WATERSURFACE RUNOFF WATER DRAIN RUNOFF DRAIN GROUNDWATER DRAINGROUNDWATER DRAIN

VEGETATIVE COVERVEGETATIVE COVER CROWN TRENCH TOCROWN TRENCH TO ESTABLISH VEGETATIVEESTABLISH VEGETATIVE PREVENT SADDLINGPREVENT SADDLING COVER (TYPICAL)COVER (TYPICAL) MINIMUM 6 INCHESMINIMUM 6 INCHES PERMEABLE BACKFILLPERMEABLE BACKFILL SURFACE SURFACE SHALLOW BERMSHALLOW BERM RUNOFF RUNOFF

AGGREGATE-ONLYAGGREGATE-ONLY BUNDLES, STACKBUNDLES, STACK IMPERMEABLE IMPERMEABLE AS NEEDED AS NEEDED LINER AS NEEDEDLINER AS NEEDED EZ ow BUNDLE EZ ow BUNDLE DISTANCE TO WITH PIPE WITH PIPE DISTANCE TO GROUNDWATER GROUNDWATER AREA OF CONCERN DISTANCE TO AREA OF CONCERN DISTANCE TO MOVEMENT MOVEMENT WILL VARY AREA OF CONCERN WILL VARY AREA OF CONCERN NATIVE SOIL NATIVE SOIL WILL VARY WILL VARY NATIVE SOIL NATIVE SOIL EZ ow BUNDLE EZ ow BUNDLE WITH PIPE WITH PIPE (DEPTH VARIES) (DEPTH VARIES)

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for curtain drains and will vary based on site conditions. 1. Identify and mark off the curtain drain outline before excavation, noting the location of the area of concern, such as the septic system drainfield.

2. Start excavating the trench at the discharge point or where connections to downstream piping will be made. The trench width should be approximately equal to the diameter of the bundle being used. It may be desirable to create a small soil berm on the downhill side of the trench in areas of high surface flow to encourage runoff infiltration into the drain. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom evenly to promote the flow of collected water.

3. Place the EZflow drainage pipe-containing bundles end to end along the edge of the trench. Fully insert the proper couplings at all system connections. An impervious liner may also be installed the full depth of the trench sidewall as needed. Lay the connected bundles with pipe in the trench, stacking aggregate-only bundles above the pipe-containing bundles as needed.

4. Place a minimum of 6 inches of permeable backfill over the bundles without compaction. Additional backfill can be placed and compacted normally above the loose fill to prevent trench saddling. Cover the trench with sod or topsoil and seed to finish the installation.

9 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 9 APPLICATIONS

Landscape Drains LANDSCAPE PLANTER Landscape drains are used to prevent excess soil saturation in planting beds and structural planters that would otherwise compromise the health of landscape and ornamental plantings. PLANTING SOIL MIX PLACEMENT For landscape plant beds, EZflow drainage bundles can be placed along the bed edge at the interface with other landscape elements such as the lawn or a walkway, or may follow an irregular alignment to target problem areas and/or respond to plant placement within PLANTER WALL the bed. For raised masonry or wood planters,(MASONRY, EZflowdrainage bundles 18"are - typically24" (TYPICAL) placed on the inside edge of the planter a minimum of 18 inches below finished grade, and up toWOOD, 24 inches ETC.) below grade for trees and other deep-rooted upland landscape plants. Bundles should extend to within the bed in larger planters as needed. EZflow drainage bundles must drain to a weep hole or other outlet through the planter wall to be effective. Tree plantings in poorly drained soils should utilize EZflow drainage bundles to form a ring offset a minimum of twice the width of the root ball from the trunk. Trenches should be dug 18 to7-INCH 24 inches EZ ow deep DRAINAGE for plant beds and below the depth of the rootball in tree plantingLANDSCAPE applications. PLANTER The bundles must drain away from the plantedBUNDLE areaWITH to3-INCH a downgradient PIPE discharge point. - DRAIN TO DISCHARGE POINT

PLANTING PRODUCT SOIL MIX The 7-inch EZflow bundles with integrated 3-inch pipe are appropriate for small raised planter, plant bed and tree planting drainage

systems. The 10-inchPLANTER bundles WALL with a 4-inch pipe can be used in larger planting areas and in areas receiving runoff from other sources. (MASONRY, 18" - 24" (TYPICAL) WOOD, ETC.)

7-INCH EZ ow DRAINAGE TREE PLANTING IN LANDSCAPE PLANTER BUNDLE WITH 3-INCH PIPE - DRAIN TO DISCHARGE POINT POORLY DRAINED SOILS TREE TRUNK

MINIMUM PLANTING 2 X ROOT SOIL MIX BALL WIDTH TREE PLANTING IN POORLY DRAINED SOILS TREE TRUNK

MINIMUM BACKFILL WITH NATIVE SOIL 2 X ROOT BALL WIDTH AMENDED FOR DRAINAGE, ROOT PLANTER WALL AERATION AND GROWTH BALL (MASONRY, 18" - 24" (TYPICAL) BACKFILL WITH NATIVE SOIL WOOD, ETC.) AMENDED FOR DRAINAGE, ROOT 7-INCH EZ ow DRAINAGE BALL AERATION AND GROWTH BUNDLE WITH 3-INCH PIPE, 7-INCH EZ ow DRAINAGE INVERT BELOW ROOT BALL BUNDLE WITH 3-INCH PIPE, INVERT BELOW ROOT BALL AND DRAIN TO DISCHARGE POINT 7-INCHAND DRAINEZ ow TO DISCHARGE DRAINAGE POINT BUNDLE WITHIMPERVIOUS 3-INCH SOIL: PIPE IMPERVIOUS SOIL: - DRAIN TOCLAY, DISCHARGE HARDPAN, ETC. POINT CLAY, HARDPAN, ETC.

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for landscape drains and will vary based on site conditions.

PLANT BEDS TREE PLANTING IN Follow the general French drain installation POORLYinstructions DRAINED on PageSOILS 7 forTREE EZ flowTRUNKdrainage installation in plant beds.

RAISED PLANTER MINIMUM 2 X ROOT 1. Connect the EZflowdrainage bundle to a planter weephole or other outletBALL WIDTH through the planter wall. Arrange the EZflowbundle length along the inside perimeter of the planter wall a minimum of 18 inches below finish grade for most plantings, deeper for trees and other deep-rooted species. Additional bundles may be connected in large planters. BACKFILL WITH NATIVE SOIL 2. Backfill using an appropriate plantingAMENDED soil over FOR the DRAINAGE, bundles, add plants and mulchROOT per the planting plan. No sand cover is required as planting soil mix is designed to drain wellAERATION while preserving AND GROWTH adequate soil moisture.BALL 7-INCH EZ ow DRAINAGE TREE PLANTING IN POORLY DRAINED SOILSBUNDLE WITH 3-INCH PIPE, INVERT BELOW ROOT BALL 1. Mark off the desired tree planting locationAND DRAIN and TOexcavate DISCHARGE a planting POINT hole twice the width of the rootball and to a depth equal to the height of the rootball. IMPERVIOUS SOIL: 2. Dig a 4-inch-deep, 7-inch-wide trench along theCLAY, interior HARDPAN, circumference ETC. of the hole and place a 7-inch EZflow drainage bundle with pipe in the trench. The bundle must slope towards and be connected to additional piping that runs away from the planting hole to the discharge point. 3. Place the tree rootball in the center of the planting hole and backfill per the planting plan.

10 PageContact 10 NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

Golf Course Drains EZflow drainage systems are ideal for draining wet areas around the course and for installation of drainage systems on fairway and greenside bunkers.

PLACEMENT Golf course drainage will generally follow the same placement recommendations as for French drain systems with special considerations for sand trap bunkers. Sand trap drainage trenches should be dug so that the top of the EZflow drainage bundle rests 1 to 2 inches below the bunker bottom to allow for maximum sand cover. Cleanout ports are recommended for bunker drainage systems at an acces- sible end of the main drain line.

PRODUCT The 10-inch bundles with integrated 4-inch pipe are suitable for most sand trap bunker applications. For main drain lines in large bunkers consider an additional outlet or using the 15-inch bundles with integrated 6-inch drain pipe. Follow the French drains product guidelines for general wet area drainage.

PUTTING GREEN SAND TRAP BUNKER

PUTTING SURFACE 4" TO 6" SAND ROOT ZONE MEDIA BUNKER COARSE SAND BOTTOM PEA GRAVEL

EZ ow EZ ow 1" - 2" MAX. BUNDLE BUNDLE WITH PIPE WITH PIPE 12" 12"

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for golf course drains and will vary based on site conditions. WET AREAS Follow the general french drain installation instructions on Page 7 for EZflow drainage installation in wet areas around the golf course.

SAND TRAP BUNKER 1. Identify the slowest drainage areas of the sand trap and determine the pattern for the drain line: irregular, herring bone or gridiron (see french french drains drains drainage drainage patterns patterns). on page 6)

2. Remove the sand from the areas of the bunker along the proposed trenches. Start digging the trench at the discharge point or where connections to downstream piping will be made to receive the 10-inch EZflow drainage bundles with pipe. Trench width should be a minimum of 12 inches to allow for an inch of sand on either side, with a maximum depth of 11 to 12 inches.

3. Place the EZflow bundles with pipe end to end along the edge of the trench. Use an end cap at the system high point and fully insert the proper couplings at all bundle-to-bundle connections. Lay the connected bundles with pipe in the trench and cover with the removed sand. Sand can be “walked” into the trench to ensure proper fill.

PUTTING GREENS Please contactcontact NDSInfiltrator at 1-800-992-9949 Systems at 800.221.4436 x1404 for design for design consultation consultation when consideringwhen considering using EZ usingflow EZdrainageflow drainage systems systems in putting in putting green applications.applications.

11 ContactContact Infiltrator NDS Systems at 1-800-726-1994 at 1-800-221-4436 forfor additional additional information. information. Page 11 APPLICATIONS

Foundation and Footing Perimeter Drains Foundation and footing perimeter drainage systems prevent moisture from entering a building basement or crawlspace through interception and removal. Aggregate-only EZflow drainage bundles stacked along the foundation wall face within 18 inches of exterior finished grade will intercept groundwater effectively and drain to a bundle with pipe below.

PLACEMENT Ideal placement for the EZflow drainage bundle with pipe in a foundation drain is at the footing toe along the entire building foundation perimeter, or at a minimum, below the finished grade elevation of the interior basement or crawlspace. The drain should have a continuous slope and outlet that runs to the drainage point. The system outlet should slope greater than the footing perimeter drain and have a diameter equal to or preferably greater than that of the drain pipe. Note: It is important that roof runoff not drain directly into foundation and footing drains, although it is acceptable to connect these systems in a manner that prevents roof runoff from entering the foundation and footing drain system and allows them to discharge together. PRODUCT The EZflow10-inch drainage bundles with integrated 4-inch pipe are suitable for most foundation conditions. If there is over 200 feet of footing or high groundwater conditions, consider an additional outlet or using the 15-inch bundles with integrated 6-inch drain pipe.

FINISHED GRADEFINISHED GRADE EXTERIOR EXTERIOR

ALTERNATE FOUNDATION WALL ALTERNATE FOUNDATION WALL CONFIGURATIONCONFIGURATION INTERIOR INTERIOR(SEE BASEMENT/ (SEE BASEMENT/CRAWL SPACE CRAWL SPACEDRAIN DETAIL) AGGREGATE-ONLY BUNDLES TO WITHIN DRAIN DETAIL) AGGREGATE-ONLY BUNDLES18 IN. OF FINISHED TO WITHIN GRADE (TYPICAL) 18 IN. OF FINISHED GRADE (TYPICAL) FINISHED GRADE FINISHEDINTERIOR GRADE LOCATE EZ ow BUNDLE WITH PIPE AT INTERIOR LOCATE EZ owFOOTING BUNDLE TOE WITH OR, PIPE AT A MINIMUM,AT BELOW FOOTING TOE OR,ELEVATION AT A MINIMUM, OF INTERIOR BELOW FINISHED GRADE OF BASEMENT/ CRAWLSPACE AND SLOPE ELEVATION OF INTERIOR FINISHED GRADE TO DISCHARGE PONT FOOTING OF BASEMENT/ CRAWLSPACE AND SLOPE TO DISCHARGE PONT FOOTING

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for perimeter drains and will vary based on site conditions. 1. Starting at the discharge point or where connections to downstream piping will be made, place the EZflow drainage bundles with pipe next to the foundation footing, or at a minimum below the basement or crawlspace finished floor elevation, but at a maximum of 12 feet. The bundles must run along the entire footing perimeter and be placed upon a prepared subgrade base sloped evenly to drain. Use an end cap at any high point and fully insert proper couplings at all system connections.

2. Place aggregate-only bundles above and touching the pipe-containing bundle, ensuring hydraulic connectivity over the footing. Place additional aggregate-only bundles up the foundation wall to the desired height, generally within 18 inches of finished grade. Bundles can be held in place with stakes as needed prior to backfilling. Avoid tearing the mesh fabric when staking.

3. Backfill the foundation excavation according to the site plans. Make sure that no large stones or debris are in contact with the EZflow drainage system.

12 PageContact 12 NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

Retaining Walls Retaining walls work to hold back earth in the landscape. Hydrostatic pressure from groundwater can cause even low retaining walls to fail, so drainage is critical to wall longevity. Also, groundwater weeping through dry-stacked masonry or timber pile retaining walls can cause unsightly staining and streaking. Similar to their function in foundation and footing drains, EZflow drainage systems intercept and convey groundwater from behind a retaining wall, relieving hydrostatic pressure and preventing weeps.

PLACEMENT Depending on retaining wall design and groundwater conditions, EZflow drainage bundles can be placed at the base of the wall footing or stacked on the backside of the wall.

PRODUCT EZflow drainage bundle selection for most gravity and piling retaining wall applications should correspond to the diameter of pipe and arrangement of drainage aggregate specified on approved plans.

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for retaining wall drains and will vary based on site conditions. Note: It is not recommended that an installation contractor substitute EZflow drainage systems for stone where the stone is being utilized for wall support such as in backfill of cantilever, anchor and mechanically-stabilized-earth retaining wall systems. It is not recommended that EZflow drainage bundles be used in walls having greater than 5-feet of exposed wall face. A qualified design engineer can utilize EZflow drainage bundles in these walls with proper design protocol that considers the lightweight nature of these products.

1. Starting at the discharge point or where connections to downstream piping will be made, place the EZflow bundles with pipe next to the retaining wall footing in gravity walls, or at a minimum below the finished grade elevation in front of the wall. In piling walls, place the bottom bundle behind the wall at an elevation equal to the finished grade elevation in front of the wall. Use an end cap at any system high point and fully insert the proper couplings at all system connections.

2. Place aggregate-only bundles above and touching the bottom pipe-containing bundle, ensuring hydraulic connectivity over the footing and up the foundation wall to the desired height, generally within 18 inches of finished grade. Bundles can be held in place with stakes as needed prior to backfilling. Avoid tearing the mesh fabric with stakes.

3. Backfill the retaining wall excavation according to the site plans. Make sure that no large stones or debris are in contact with EZflow drainage system.

13 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 13 APPLICATIONS

Roof Runoff Drains Roof runoff drains divert rainwater collected in a gutter system away from the building foundation. Systems can be designed to allow for maximum groundwater recharge and to discharge peak flows into the landscape.

PLACEMENT Roof runoff systems should not drain toward building foundations or retaining walls so as not to increase hydrostatic pressure on these elements or overload their relative drainage systems. Gutter drain systems should utilizeutilize EZ EZflowflow drainagedrainage bundles startingstarting aa minimumminimum 4 4 ft.ft. fromfrom andand alignedaligned away away from from the the building building foundation. foundation. CatchNDS catch basins basins combined combined with with solid solid (unperforated) (unperforated) pipe pipe systems systems and and bendsbends can receivereceive direct direct gutter gutter flow flow and and convey convey it toit tothe theEZ EZflowflow drainage bundles.bundles. Gutter Gutter drain drain systems systems should should then then discharge discharge to ato pop-up a pop-up emitter, emitter, surface surface swale, swale, core-drilled core-dri curblled curbor other or other discharge discharge point. Stacking aggregate-only bundles bundles to to the the seasonal seasonal high high groundwater groundwater level level in inthe the soil soil below below the the main main receiving receiving bundles bundles will will maximize maximize groundwatergroundwater recharge and and limit limit peak peak outflows. outflows.

PRODUCT In general, EZflow drainage bundles should be selected with a pipe diameter equal to or greater than the size of the downspout. If two or more downspouts are connected to drain into one EZflow drainage bundle, the 15-inch bundle with 6-inch pipe should be utilized.

ROOF

GUTTER

EZ ow DRAINAGE BUNDLES WITH PIPE SLOPE AT 1% MIN. AND PROVIDE COVER PER CHART EXAMPLE DOWNSPOUT CONFIGURATIONS

ARRANGE AGGREGATE-ONLY BUNDLES BELOW MAIN BUNDLE TO THE SEASONAL MINIMUM SOIL COVER IN VERTICAL STACK HIGH GROUNDWATER LEVEL FOR MAXIMUM ROOF RUNOFF APPLICATIONS CATCH BASIN GROUNDWATER RECHARGE - BUNDLE (RECOMMENDED) CONFIGURATIONS MAY VARY No. of 10” Bundles Minimum Soil Cover 1 or 2 6” DRAIN TO SURFACE SWALE, POP- UP EMITTER, CORE-DRILLED CURB 3 8” OR OTHER APPROVED OUTFALL 4 FT. MIN. 4 10”

SEASONAL HIGH GROUNDWATER LEVEL 5 12”

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for roof runoff drains and will vary based on site conditions. Refer to page 5 for minimum cover and maximum bundle chart to prevent flotation for a filled drainage area. 1. Identify downspout locations for connection to the proposed roof runoff system. Mark off areas for connection piping and for the EZflow drainage bundles, considering system discharge limitations.

2. Excavate locations for catch basins, pipe runs and bundles. The trench for the EZflow drainage bundles should match the bundle width and can be excavated to the seasonal high groundwater level for maximum groundwater recharge.

3. Install aggregate-only EZflow drainage bundles along the bottom of the deep trench as needed for maximum groundwater recharge, and the pipe-containing bundle with pipe at the appropriate depth to ensure a minimum 4 inches of soil cover above the system. 4. Install an NDS or equivalent catch basin to directly receive downspout discharge and run a minimum 4-foot length of solid (unperforated) pipe away from the building foundation before connecting to the EZflow drainage pipe. More than one downspout can be connected prior to entering the system with properly-sloped solid piping and connections. Catch basins are recommended for ease of maintenance. Clean-outs must be installed if direct downspout to drainage system connections are made.

5. Following the EZflow drainage bundle assembly, install a solid pipe run to a pop-up emitter, surface swale, core-drilled curb or other drainage point. Fully insert the proper couplings at all system connections. 6. Cover the trench and other exposed excavation areas with sod or topsoil and seed to finish the installation.

14 Contact NDS at 1-800-726-1994 for additional information. Page 14 Contact Infiltrator Systems at 1-800-221-4436 for additional information. APPLICATIONS ® EZfl0w

Basement/Crawlspace Dewatering In many cases older homes were constructed without foundation and footing perimeter drains. A basement area or crawlspace can become inundated when groundwater levels rise with seasonal cycles or following heavy rains. Retrofitting a footing drain on an existing home can be impractical considering paved areas, steps, decks and patios, site access, utility connections and mature landscaping. A better solution may be to install an interior basement or crawlspace drain system that conveys collected water to a discharge point or sump for removal from basement or crawlspace by pump.

PLACEMENT For EZflow drainage basement and crawlspace dewatering systems it is recommended that a 10- to 12-inch-wide trench be excavated along the interior foundation wall a minimum of 9 inches deep below the floor surface elevation for a soil floor or 9 inches below the bottom of floor slab elevation for a concrete floor. The trench must slope towards and discharge into an excavated sump. Installation should be avoided during flooded conditions or when no other outlet exists.

PRODUCT 7-inch EZflow drainage bundles with 3-inch pipe are installed along the bottom of the trench with appropriate fittings at trench bends. A minimum 2-inch layer of permeable backfill is placed above the bundle to support poured concrete in slab repair situations or brought to finished grade where the concrete slab exists.

OPTIONAL REPAIRED SLAB COARSE SAND TO MATCH EXISTING OR COARSE OR PEA STONE SAND/PEA STONE TO INTERIOR (2 INCHES, MIN.) FINISHED GRADE FOUNDATION WALL

EXISTING INTERIOR CONCRETE SLAB (IF PRESENT)

FOOTING

MOISTURE BARRIER

EZ ow 7-INCH BUNDLE WITH 3-INCH PIPE, UNDISTURBED SUBGRADE DRAIN TO EXCAVATED SUMP AND PUMP TO APPROVED EXTERIOR OUTFALL

INSTALLATION INSTRUCTIONS The steps below offer typical installation practices for basement/crawlspace dewatering drains and will vary based on site conditions. 1. Excavate a trench along the inside perimeter of the foundation wall being careful to not damage or interfere with existing utilities. The trench should be a minimum of 9 inches deep and should be sloped evenly towards an excavated sump or discharge point.

2. Connect the 7-inch EZflow bundle with 3-inch pipe to the excavated sump outfall and connect additional bundles to run the entire length of the trench. Use an end cap at any system high point and fully insert the proper couplings at all system connections.

3. Place a minimum 2-inch layer of clean, coarse sand or washed pea gravel above the bundle to support poured concrete in slab repair situations, or place the sand/gravel to finished grade where no concrete slab exists.

15 Contact NDS at 1-800-726-1994 for additional information. Contact Infiltrator Systems at 1-800-221-4436 for additional information. Page 15 NDS EZFLOW™ WARRANTY STANDARD LIMITED WARRANTY

(a) The structural integrity of each EZFlow expanded polystyrene drainage system manufactured by EZFlow LP and distributed by National Diversified Sales, Inc. (“NDS”), when installed and operated in a drainage system in accordance with its instructions, is warranted to the original purchaser (“Holder”) against defective materials and workmanship for one year from the date installation of the drainage system commences. To exercise its warranty rights, Holder must notify NDS in writing at its Corporate Headquarters, 21820 Bur- bank Blvd., Suite 200, Woodland Hills, CA 91367 within fifteen (15) days of the alleged defect. EZFlow LP will supply replacement Units for Units determined by EZFlow LP to be covered by this Limited Warranty. The liability of EZFlow LP and NDS specifically excludes the cost of removal and/or installation of the Units.

(b) THE LIMITED WARRANTY AND REMEDIES IN SUBPARAGRAPH (a) ARE EXCLUSIVE. THERE ARE NO OTHER WARRANTIES WITH RESPECT TO THE UNITS, INCLUDING NO IMPLIED WARRANTIES OF MER- CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

(c) The Limited Warranty does not extend to incidental, consequential, special or indirect damages. EZFlow LP and NDS shall not be liable for penalties or liquidated damages, including loss of production and profits, labor and materials, overhead costs, or other losses or expenses incurred by the Holder or any third party. Specifically excluded from Limited Warranty coverage are damage to the Units due to ordinary wear and tear, alteration, accident, misuse, abuse or neglect of the Units; the Units being subjected to vehicle traffic or other conditions which are not permitted by the installation instructions; failure to maintain the minimum ground covers set forth in the installation instructions; failure of the Units due to improper sitting or improper sizing; or any other event not caused by EZFlow LP or NDS, This Limited Warranty shall be void if the Holder fails to comply with all of the terms set forth in this Limited Warranty. Further, in no event shall EZFlow LP or NDS be responsible for any loss or damage to the Holder, the Units, or any third party resulting from installation or shipment, or from any product liability claims of Holder or any third party.

(d) No representative of EZFlow LP or NDS has the authority to change or extend this Limited Warranty. No warranty applies to any party other than the original Holder.

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