Engineered for Optimal Performance

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LEACHING CHAMBERS16” HC CHAMBER

(1600BD)

Manufactured by Infiltrator Systems, Inc., 4 Business Park Road, P.O. Box 768, Old Saybrook, CT 06475 • 860-577-7000 • Fax 860-577-7001 • 1-800-221-4436 • www.infiltratorsystems.comU.S. Patents: 4,759,661; 5,017,041; 5,156,488; 5,336,017; 5,401,116; 5,401,459; 5,511,903; 5,716,163; 5,588,778; 5,839,844 Canadian Patents: 1,329,959; 2,004,564 Other patents pending. Infiltrator, Equalizer, Quick4, and SideWinder are registered trademarks of Infiltrator Systems, Inc. Infiltrator is a registered trademark in France. Infiltrator Systems, Inc. is a registered trademark in Mexico. Contour, MicroLeaching, PolyTuff, ChamberSpacer, MultiPort, PosiLock, QuickCut, QuickPlay, SnapLock and StraightLock are trademarks of Infiltrator Systems, Inc. PolyLok is a trademark of PolyLok, Inc. TUF-TITE is a registered trademark of TUF-TITE, INC. Ultra-Rib is a trademark of IPEX Inc. © 2014 Infiltrator Systems, Inc. All rights reserved. Printed in U.S.A.

Distributed by:

11” Standard Chamber

16” High Capacity Chamber

BIO 2Chamber

BIO 3Chamber

Length (A) 76” 76” 87” 87”Effective Length (B) 75” 75” 86” 86”Invert Height (C) 6.4” 11.3” 9.03” 9.03”Overall Height (D) 11” 16” 12” 12”Overall Width (E) 34” 34” 15” 22”Capacity 9.2 cu ft (68.4 gal) 13.6 cu ft (101.7 gal) 5 cu ft (37.1 gal) 8.5 cu ft (62.8 gal)

BIODIFFUSER™ Specifications

BioDiffuer Detail View – Not to scale

* Length and number of trenches determined by design

11" STANDARD

22” NARROW

15” NARROW

16" HIGH CAPACITY

BB

E

A E

C D

E

C D

B

A

B

A

E

DC

E

C D

B

A

22” Narrow Chamber

15” Narrow Chamber

16” High Capacity Chamber

11” Standard Chamber

Save time on the job without sacrificing performance.

The BioDiffuser plastic leaching chambers provide a maximum infiltration surface area while allowing effluent to flow in all directions. Constructed of high density polyethylene which is inert to wastewater. The sturdy, lightweight design is optimal for handling most leachfield challenges.

Save Labor, Time and MaterialsEasy assembly and installation with as few as two people, a backhoe and a pickup truck.

A Gravelless Alternative for Onsite Septic Leachfield Systems

34" PRODUCT SPACING PER CODE

COVERPER CODE

* LENGTH AND NUMBER OF TRENCHES DETERMINED BY DESIGN.

NATIVE BACKFILL

INVERT INVERT

SPACING PER CODE

TOPSOIL

36" TRENCH

BIODIFFUSER™ LEACHING CHAMBER INSTALLATION INSTRUCTIONS

Before You BeginThe chambers may only be installed according to state and/or local regulations. If unsure of the instal-lation requirements for a particular site, contact the local health department. Like conventional systems, the soil and site condi-tions must be approved prior to installation. Conduct a thorough site evaluation to determine the proper sizing and siting of the system before installation.

Excavating and Preparing the SiteAs is the case with conventional systems, do not install the systems in wet conditions or in overly moist soils, as this causes machinery to smear the soil.1. Stake out the location of all trenches and lines.

Set the elevations of the tank, pipe, and trench bottom.

2. Excavate and level trenches with proper center-to-center separation. Verify that the trenches are level or have the prescribed slope.

3. Rake the bottom and sides if smearing has occurred while excavating. Remove any large stones and other debris. Do not use the bucket teeth to rake the trench bottom.

4. Verify that each trench is level using a level, tran-sit, or laser.

Attaching the End Plates1. With a hole-saw, cut an opening for the inlet pipe

using one of the pre-marked circles on the end plate as a guide. Pre-marked circles allow for 4-inch SDR35, 4-inch SCH40 and 2-inch pressure dosing pipe.

2. Attach the end plate to the inlet end of the cham-ber by lining up the locking hubs with the cor-responding chamber end. Apply firm pressure to lock the hubs in place on one side of the chamber and then the other.

3. In the inlet end of the end plate, insert the appro-priate diameter inlet pipe into the previously drilled hole. Fasten the pipe in place with a screw to secure it to the end plate. Install a splash plate to the base of the endcap under the pipe.

4. Attach a closed end plate onto the outlet end of the chamber by snapping the end plate’s locking hubs onto the chamber end. Do not cut an open-ing on the closed or outlet end plate.

Installing the Chambers1. Set the invert at the appropriate height from the bottom of the trench to

the bottom of the inlet. Invert height will vary depending on which end plate is used. Precisely measure the invert on the end plate prior to set-ting the invert height.

2. Place the first chamber with the open end plate at the beginning of the trench.

3. Insert the inlet pipe into the end of the chamber. 4. Check the first-installed chamber to be sure it is level or has the pre-

scribed slope.5. Secure the inlet pipe to the end plate with a screw.6. Lift and place the end of the next chamber onto the previous one at a

45° angle. Line up the notches on the center end of the chamber and lower it to the ground to engage the interlocks.

7. Continue interlocking the chambers until the trench is completed. The last chamber in the trench should have a closed end plate. As the cham-bers are installed, verify that they are level or have the prescribed slope.

8. To fill the sidewall area, start at the joints where one chamber interlocks with another, and pull soil from the sides of the trench with a shovel. Continue backfilling the area making sure the fill covers the louvers 1-2 inches.

9. Pack down the fill by walking along the edges of the trench and cham-bers. This step is important for assuring structural support. Only com-pact enough to match the natural in-place density of the surrounding native soils.

10. Proceed to the next trench and begin with step one.

Covering the SystemBefore backfilling, the system must be inspected by a regulator or inspec-tor as required by state and local codes. 1. Backfill the trench by pushing fill material over the units. Keep a mini-

mum of 12 inches of compacted cover over the chambers before driving over the system. Note: Do not drive over the system while backfilling in sand, since sand does not give adequate support.

2. It is best to mound several extra inches of soil over the finish grade to allow for settling. This also ensures that runoff water is diverted away from the system. After the system is covered, the site should be seeded or sodded to prevent erosion.

THE BIODIFFUSER™ LEACHING CHAMBER Leaching chambers have become the product of choice for leachfield applications over conventional pipe and gravel systems. Their lightweight construction offers lower installed costs and less intrusive installations.

FEATURES & BENEFITS

4 Injection-molded from High Density Polyethylene (HDPE) for lightweight and sturdy design.

4 Designed to accommodate both gravity-fed and pressure-dosed systems.

4 22° angel sections available

4 A universal inlet/outlet endcap.

4 Inspection/vent ports on each chamber.

4 Quick installation in trench or bed applications.

4 Chambers can sustain loads of 16,000 lbs (H-10) per axle.

16” HC Chamber

BIO 2 Chamber

BIO 3 Chamber

11” Standard Chamber

No Stone or Gravel

Easily Transported to Job Site

Quick Installation

UNIVERSALINLET/OUTLET ENDCAP

▫ Chambers▫ End Plates▫ PVC Pipe and

Couplings (4-inch in diameter

for header and inlet pipes)

▫ 4-inch Cap for Inspection Port

▫ Backhoe

▫ Laser, Transit, or Level

▫ Shovel and Rake▫ Hole Saw/Router Bit▫ Tape Measure▫ Utility Knife▫ Screw Gun▫ Glue*▫ Stakes (4)*▫ String Line*

* Optional

Materials and Equipment Needed

These guidelines for construction machinery must be followed during installation:

▫ Avoid direct contact with chambers when using construction equipment. Chambers require a 12-inch minimum of compacted cover to support a wheel load rating of 16,000 lbs/axle or equivalent to an H-10 AASHTO load rating.

▫ Only drive across the trenches when nec-essary. Never drive down the length of the trenches.

▫ To avoid additional soil compaction, never drive heavy vehicles over the completed system.