This weekend I’m going to install a flo-well dry well from my basement sump outside into my yard… question is I know the flo wants 4” pipe into it but is it best to run a full 4” the whole way or should I go smaller for the majority of the run and then convert to 4” before going into the flo-well?

  • what is the vertical hight from pump to horizontal run ? using smaller pipe will increase the pressure and decrease the flow. What is the total distance from the pump
    – Traveler
    Commented Jul 1, 2022 at 22:36
  • 1
    is there a pump, or are you on a hill?
    – Jasen
    Commented Jul 2, 2022 at 4:26
  • Indeed - are you pumping water out of your sump to the dry well, or are you connecting your sump to the dry well without a pump in favorable terrain?
    – Ecnerwal
    Commented Jul 2, 2022 at 19:28


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