Wastewater SupplyWastewater & septic equipment

Leach Field Products

Chambers and risers for septic drain fields: Infiltrator Quick4 chambers and AK Industries fiberglass risers.

A leach field (drain field or soil absorption system) is the final treatment stage of a conventional septic system. Effluent from the tank is spread through trenches or beds, where the soil filters and treats it. Chamber systems replace the traditional pipe-and-gravel trench with open-bottom plastic chambers. The chambers create a void over the soil and are lighter and quicker to install.

Products

Comparing Quick4 chambers

ModelSize (W x L x H)Trench widthStorage
Quick4 Standard34" x 53" x 12"36"43 gal
Quick4 Plus Equalizer 36 LP22" x 53" x 8"24"20 gal

Specifications from Infiltrator Water Technologies cutsheets. Both chambers have a 48" effective length.

Planning a chamber leach field

  • Site and soil evaluation: soil type, percolation or loading rate, depth to groundwater and restrictive layers.
  • Design flow: usually based on bedrooms or building use under state rules.
  • Layout: trench count, length and spacing, or a bed. Serial or parallel distribution. Gravity, pump-to-gravity or pressure dosing.
  • Cover and traffic: minimum and maximum cover depths. Keep heavy vehicles off unless the design allows it.
  • Access: risers and lids on tanks and pump basins for inspection and pumping.

Related reading: choosing an Infiltrator Quick4, Quick4 Plus Standard (Q4+STD) and Polylok 3008-HD.

Frequently asked questions

How many chambers do I need?

The design flow, the soil evaluation and your state's chamber design manual set the number and layout of chambers. Most onsite systems need a permitted design.

What is a low-profile chamber for?

Low-profile chambers such as the Quick4 Plus Equalizer 36 LP (8" high) allow shallower installation where water tables or restrictive soil layers limit trench depth.

Why add a riser to a septic tank or pump basin?

A riser brings the access opening up to grade, so inspection and pump service don't require digging.

Need pricing or availability?

Tell us the model, quantity and delivery ZIP and we'll prepare a quote.