Shallow well pump question

Discussion in 'Pumps and Tanks Well Forum & Blog' started by aramtch, Aug 28, 2010.

  1. aramtch

    aramtch New Member

    Messages:
    19
    I've just had a new 2" well drilled and am trying to hook up to it a new 1HP shallow well jet pump.

    The depth to water in my well is about 20-24', but I have a 60' horizontal run from the well to where my pump is.

    In that horizontal run, I gradually decreased the size of the pipe, starting at 2" at the well -> 1 1/2" -> 1 1/4" into the pump.

    I've filled the pump and filled the 60' of horizontal pipe with water. But when i turn on the pump - once its done pumping out the water in the horizontal run - that's it. It can't seem to pump water from the actual well itself.

    I've got two new checkvalves installed - one at the well --> and one at the pump -->, and all the seals seem to be good.

    I have NOT hooked up the discharge at my pump yet (i wasn't sure if i needed to, but I could be wrong?)

    If anyone could provide some direction or advice on what might be wrong, I would appreciate it. I would LOVE to tackie this in the next few days and get it running. Thanks in advance!
  2. Jkacos

    Jkacos New Member

    Messages:
    2
    Location:
    Michigan
    I would try eliminating the check valve at the well and retest. Is the horizontal run of the system level or does that climb? Have you ever hooked the pump up at the well to see if it is capable of working?
  3. masterpumpman

    masterpumpman New Member

    Messages:
    729
    Location:
    Virginia Beach, VA
    After lifting over 20' jet pump start becoming a problem! With the friction loss, the check valves and the 24' lift you are going to have a problem getting it to work well. Remove all check valves except the on nearest the well and look for suction leaks all the way to the pumping level. The least bit of suction leak will cause the pump to not pump anything. If possible you might try to move the pump right to the well and try pumping it there. If it pumps there, you have a suction leak from the well to where it was installed. If it won't pump at the well, you may have a leak from the pump to the pumping level. In any case, even though suction lift pumps in theory will lift water 30' at sea level, including friction loss, check valves and lift you are very close to the limit. Good Luck!
  4. jimtum

    jimtum AAW

    Messages:
    57
    Location:
    Decatur Tx
    Do you have a single pipe or dual pipe on your suction side. Normally that is too much lift for a single pipe and this may be your problem if I understand you correctly.
  5. aramtch

    aramtch New Member

    Messages:
    19
    Hey guys... i'm gonna try tomorrow to connect directly to the well - bypassing the horizontal run. I'll report back how that goes.

    Meanwhile, would the fact it's a 2" well (as opposed to a 1 1/4" or 1 1/2") make a big difference? (seems like it would)

    And would the fact i have nothing hooked up to the pump discharge make a difference? (I doubt it, but what do I know?)
  6. aramtch

    aramtch New Member

    Messages:
    19
    OK guys, i connected the pump directly into the well (bypassing the 60' run) and it seems to pump water just fine. But if i move the pump back to where it needs to go, I'll end up with the same problem.

    So that's semi-good news. Just now I'm not sure what's the best way to proceed.

    Should I drop a 1-1/4" line down into the 2" well?

    Or would a larger (1-1/2HP) pump do the trick?
  7. valveman

    valveman Moderator Staff Member

    Messages:
    4,468
    Location:
    Lubbock, Texas
    Probably have a suction leak in the 60' of line.
  8. aramtch

    aramtch New Member

    Messages:
    19
    you're probably right. I'll be testing that this week - is there a recommended way of testing if there's a suction leak? Attach a pressure guage and see if it goes down over time?
Similar Threads: Shallow pump
Forum Title Date
Pumps and Tanks Well Forum & Blog How do I choose shallow well pump size? Sep 9, 2014
Pumps and Tanks Well Forum & Blog SHALLOW WELL JET PUMP PROBLEM Aug 6, 2014
Pumps and Tanks Well Forum & Blog Replacing pump in shallow well Jun 9, 2014
Pumps and Tanks Well Forum & Blog Shallow well jet pump question Apr 13, 2014
Pumps and Tanks Well Forum & Blog Can you purchase parts for meyers shallow jet pumps? Mar 4, 2014

Share This Page