Pump cannot build adequate pressure

Discussion in 'Pumps and Tanks Well Forum & Blog' started by EricL, Nov 22, 2009.

  1. EricL

    EricL New Member

    Messages:
    1
    Location:
    Tallahassee, Fl.
    I have a 1HP submersible at 40 feet in a 80 foot well. The well is 6-7 years old. I just had the two 20' galvanized pipes in the well replaced last year as a result of a leak, when the pump stayed on with low pressure. This leads me to believe it is a different problem than last years leaking galvanized well pipe, but it I suppose they could have gone bad again after only a year.

    The pump stays on and will not go above 20#'s of pressure. I have a 120 gallon holding tank that my pressure switch and gauge are attached to. It didn't appear to be waterlogged, but just in case I drained that tank and took out the plug in the top of the tank to make sure air got back in it. I screwed the plug back in the tank and turned the pump back on, but again pressure only hit 20#s. My normal setting is 50# min and 70# max.

    Do you have any suggestions on how to isolate the problem? Mainly I wanted to make sure it wasn't something simple before calling the well guy which has been running me about $500 almost once a year. Between corroded wires, lightning strikes, and leaking pipes I have had to have my pump pulled out the ground 4 times in the past six years.

    If I need a new pump I would like to increase capacity from 1HP to maybe 1.5HP. Is that advisable, and what is the best submersible pump?
  2. valveman

    valveman Moderator Staff Member

    Messages:
    4,579
    Location:
    Lubbock, Texas
    Sounds like you have another hole in the drop pipe. I would change the galve pipe to sch 80 PVC or poly pipe.
  3. Thatguy

    Thatguy Homeowner

    Messages:
    1,459
    Location:
    MD
    You could check that the pump is pulling 1840w.
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