sewage basin installation & ground water

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    • #279145
      Avatar photoMasterPlumbers

        Please help. I have been forced to replace my existing sewage ejector basin in my basement with a new larger deeper one. Upon digging for the new tank we hit ground water which now forces the new deeper tank out of the hole. Any suggestions are welcome.

      • #300126
        Avatar photoRetired plbg1

          Put in another sump for the seepage water and pump it out to daylight. You will have to put holes in the sump are some drain tile to collect the water.

        • #300127
          Avatar photoRobert Stephen Morton

            Chris. install a concrete caison (pipe with no sealed ends, when installed, Do not pump out but allow water to find its own level, then hire a “Concrete Pump” & drop the end into the water so that the hose is verticle to the base, then pump or “Tremmie” a plug in the bottom, when concrete has gone off you can pump out the water & pour a new base. (you may flatten but do not disturb the submerged concrete or you will separate the concrete)
            Make sure the mass of concrete exceeds the “Lift” of the new Pump Well.

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