1250/500 Gallon Precast Concrete Septic Tank

Product Overview:
Designed to hold 1750 gallons of liquid, this mid-seam style tank offers the ability to run the pipe from the house to either one of its side or center inlets. The same option is available on the outlet of the tank, going out to the leach field from its side or out its middle outlet. Polylok IV closed end boots are used for the tank’s penetrations, giving a flexible, watertight connection to the pipe entering and leaving the precast structure.
Meets all best-practice requirements of ASTM C 1227 & NPCA.


  • 1750 Gallon tank used for up to 4 bedroom systems where a larger pump chamber is needed to send the effluent to the leach field
  • Can also be used for up to 6 bedroom systems
  • Having two compartments helps separate the solids before the effluent leaves the tank
  • Is delivered pre-assembled for ease of installation

* Details shown are NH-specific; for details of other states’ specifications.

Drawing of a 1250/500 precast concrete septic tank.

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1250/500 Gallon Precast Concrete Septic Tank PDF Files

1250/500 Gallon Precast Concrete Septic Tank DWG Files