1250/350 Gallon Precast Concrete Monolithic Septic Tanks

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    New HampshireVermontMaineMassachusetts


    1250/350 Gallon Concrete Monolithic Septic Tank Overview

    Designed to hold 1600 gallons of liquid, this top-seam style concrete septic 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.

    1250/350 gallon precast concrete monolithic septic tank drawing.Features/Details*

    • 1600 Gallon tank used for 4 bedroom systems where a pump chamber is needed to send the effluent to the leach field
    • Can also be used for up to 4 bedroom systems
    • Having two compartments helps separate the solids before the effluent leaves the tank
    • Top seam tank for use in high water table areas or where preventing water infiltration is critical
    • Is delivered pre-assembled for ease of installation
    • Most common two compartment tank in NH
    • Shallow tank can be used in ledge situations

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

    You may also be interested in these popular precast concrete septic tanks.

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