Concrete Chambers

Used to leach out effluent from the septic tank into the ground, concrete chambers are a long-lasting, reusable solution.

Advantages of Concrete Chambers:

  • Can be driven over (H-20 traffic-rated)
  • Enable a leach field size reduction in New Hampshire, compared to pipe and stone design
  • Side seepage holes that enable liquid to be disbursed out of the sides as well as the bottom
  • Great for tight lots where the leach field must be located in the driveway or in a parking lot

8x8 chambers:

  • Must have a 4-inch perforated pipe run through them so the effluent can travel from one side of the chamber to the other.
  • Are easier to install than other sizes, and cost about 1/3 less than the same-size leach field bed that utilizes 4x8 chambers.

Concrete Chambers – Available Sizes:
A.J. Foss precast concrete chambers are available in several sizes.

  • 8' x 8' x 13" Tall Inlet on 8' Side
  • 4' x 8' x 13" Tall Inlet on 8' Side
  • 4' x 8' x 18" Tall Inlet on 4' End
  • 4' x 8' x 13" Tall Inlet on 4' End
  • 4' x 12' x 13" Tall Inlet on 12' Side

Concrete Chambers Help Achieve the Smallest Possible Leach Field Footprint

4x8x13-inch tall 8-ft inlet side chambers can be used to lengthen an 8x8 chamber bed, enabling the designer to construct an appropriate bed size for each project. (This allows for extension of the field in 4-ft. sections instead of 8-ft sections. This means that the designer can extend from a 24 to a 28-ft wide bed, instead of needing to extend to 32-ft where space doesn’t allow.)

Other size chambers have a built-in precast pipe with slots on the side, for moving effluent from one side of the chamber to the other.

View Concrete Chamber Sizes & Diagrams

Contact us to discuss your projects throughout New Hampshire, Maine and Northern Massachusetts that require wastewater and stormwater products, and discover the A.J. Foss difference for yourself.

Concrete Chambers DWG Files

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