1'' polypipe as the drop pipe

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

  1. luc

    luc New Member

    Messages:
    61
    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

    Messages:
    3,189
    Location:
    S. Maine
    That be a bit much HP to be setting on Poly
  3. luc

    luc New Member

    Messages:
    61
    Location:
    Quebec, Canada
    What is usuallly used for drop pipe on 3 to 5 hp pumps?
  4. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    PVC, or Galvanized. I hate Galvanized though because it rusts
  5. luc

    luc New Member

    Messages:
    61
    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
  6. ballvalve

    ballvalve General Engineering Contractor

    Messages:
    3,261
    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.
  7. luc

    luc New Member

    Messages:
    61
    Location:
    Quebec, Canada
    Thanks ballvale for replying. It answers my question.
Similar Threads: polypipe drop
Forum Title Date
Pumps and Tanks Well Forum & Blog Help removing polypipe from brass barbed fittings... Aug 23, 2007
Pumps and Tanks Well Forum & Blog Pressure dropping and climbing on pump? small crack to blame? Yesterday at 6:48 PM
Pumps and Tanks Well Forum & Blog Is 1 1/4" drop pipe too large? Tuesday at 6:00 PM
Pumps and Tanks Well Forum & Blog Can only pull out 6 inches of Drop Pipe and Pump, Please Help!!! Jun 16, 2014
Pumps and Tanks Well Forum & Blog How to get drop pipe out of deep well? Apr 25, 2014

Share This Page