Pump cycling vs continuous operation

Discussion in 'Irrigation / Sprinkler Forum' started by OLDMAN, Jul 28, 2011.

  1. OLDMAN

    OLDMAN New Member

    Joined:
    Jul 27, 2011
    Occupation:
    Retired engineer from a defense contractor
    Location:
    Michigan
    I have a well and pressure tank. During the operation of my irrigation system, on the first two zones the pump runs continuously at 44 PSI. On the other three zones, the pump cycles on and off (30-50 PSI). Please advise me which is the preferable condition.

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  2. zl700

    zl700 DIY Senior Member

    Joined:
    Aug 26, 2009
    Location:
    Western NY
    Constant operation is preferred

    Motor cycling is tough on the equipment

    Amperage draw is always higher on starting versus running so pump cycling could use more energy depending on cycle rates.
     
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  4. OLDMAN

    OLDMAN New Member

    Joined:
    Jul 27, 2011
    Occupation:
    Retired engineer from a defense contractor
    Location:
    Michigan
    Thanx 700, I shall replace the nozzles in the 3 zones which are cycling, with larger orifice nozzles; that should increase my volume and, hopefully, result in continuous operation of my pump.
     
    Last edited: Jul 28, 2011
  5. OLDMAN

    OLDMAN New Member

    Joined:
    Jul 27, 2011
    Occupation:
    Retired engineer from a defense contractor
    Location:
    Michigan
    I replaced the nozzles in the 3 "problem" zones and, voila, I am now getting the desired continuous pump running full time in all zones. Again, thanx "zl700."
     
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