Concrete Drywells

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Plumbing that collects ground water in a concrete drywell is common in NH.  A.J. Foss-manufactured precast concrete drywells are reinforced with steel rebar and structural fiber for strength and durability. For home plumbing use, a 500-gallon drywell is produced with 120 liquid seepage knock outs. These drains or seepage knock outs can be removed as necessary. Our customers benefit from the drywells our team casts with one, two, three and four-inch combination low pressure Polylok© Pipe Seal. Our team can also pour them with a bottom.

Photo of precast concrete drywells.Drywell Uses

Area drywells in service can be used to catch groundwater from a driveway, or from within a lawn. In New Hampshire, they can be used in a sanitary septic design. Their job is to enable the connection of a water treatment system (pipes from a water softener, for example) to the drywell instead of running it into a septic tank, which is not recommended. Some people connect plumbing from their washing machine and dish washer to a drywell.

View A.J. Foss Drywell Sizes & Diagrams

Features of an A.J. Foss Precast Concrete Drywell

This information can help plumbers and property owners considering A.J. Foss precast concrete drywells:

  • Octagon Shaped: 6'6" across; 3' Tall; Inlet 26"
  • Top is monolithically poured with walls for strength and ease of installation
  • Can be stacked to increase volume by 500 gallon increments
  • Rectangular Shaped: 8' long; 32" Tall; Inlet 24"
  • Have an available HD option, if they must be vehicle-bearing / driven over
  • Have a 24" cover to allow for access, or can be set up with a top frame & grate to catch water
  • Can be used as an overflow structure

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.

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