New Pump Needed?

Discussion in 'Irrigation / Sprinkler Forum' started by bizgoz, Apr 26, 2008.

  1. bizgoz

    bizgoz New Member

    Joined:
    Apr 26, 2008
    My sprinkler pump is about 25 years old. About 10 years ago I had it rebuilt. It worked fine until a few weeks ago. Some work was being done behind my house and I had to disconnect the pump for about a month and then extend the intake pipe (from a canal) about 25 feet in length. The run from canal to pump is about 10 feet vertical and about 120 feet long. Since I redid it (and replaced the check valve) it primes okay, but has very low pressure. Any thoughts on rebuilding this ancient pump vs. replacing it? Thanks!
     
  2. Wet_Boots

    Wet_Boots Sprinkler Guy

    Joined:
    Mar 23, 2007
    Location:
    Metro NYC
    Extending the intake line increases the friction losses, and reduces pump performance. If it must be longer, then you may need to replace it all with a larger-diameter pipe.
     
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  4. bizgoz

    bizgoz New Member

    Joined:
    Apr 26, 2008
    Got it. And as far as replacing the pump goes, is there a preferred internet vendor for pumps?
     
  5. valveman

    valveman Moderator Staff Member

    Joined:
    Mar 15, 2006
    Occupation:
    Pump Controls Technician
    Location:
    Lubbock, Texas
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