1'' polypipe as the drop pipe

Discussion in 'Pumps and Tanks Well Forum & Blog' started by luc, Feb 16, 2010.

  1. luc

    luc Member

    Joined:
    Apr 19, 2007
    Location:
    Quebec, Canada
    Hello everyone,

    Just want to know if it is good practice to use 1'' polypipe as the drop pipe in wells with 3 HP or 5 HP submersible pumps.

    Thanks,
    Luc
     
  2. nhmaster

    nhmaster Master Plumber

    Joined:
    Jul 30, 2008
    Occupation:
    Tech. Instructor
    Location:
    S. Maine
    That be a bit much HP to be setting on Poly
     
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  4. luc

    luc Member

    Joined:
    Apr 19, 2007
    Location:
    Quebec, Canada
    What is usuallly used for drop pipe on 3 to 5 hp pumps?
     
  5. nhmaster

    nhmaster Master Plumber

    Joined:
    Jul 30, 2008
    Occupation:
    Tech. Instructor
    Location:
    S. Maine
    PVC, or Galvanized. I hate Galvanized though because it rusts
     
  6. luc

    luc Member

    Joined:
    Apr 19, 2007
    Location:
    Quebec, Canada
    Thanks Peter for replying.

    I read on a previous post that even PVC was not reccomended for pumps greater then 2 HP!!!!

    Luc
     
  7. ballvalve

    ballvalve General Engineering Contractor

    Joined:
    Dec 28, 2009
    Occupation:
    "retired" and still building and troubleshooting
    Location:
    northfork, california
    Schedule 80 pvc with the SS couplers should hang 5hp dependant on depth. I would email the pipes MFG and not take the point here. I have 3HP on 200psi poly @200 feet, but you must use long,drawn brass fittings with three to 4 real clamps with a sae torque rating. You would have to also heat to insert the pipe on the fittings using the MFGR's instructions, not the local barefoot plumbers torch method. I woulod also reheat the pipe the next day and retorgue the clamps before setting. If using a 5 hp pump a slow start would solve all torque issues.
     
  8. luc

    luc Member

    Joined:
    Apr 19, 2007
    Location:
    Quebec, Canada
    Thanks ballvale for replying. It answers my question.
     
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