Pump and psi confusion

Discussion in 'Irrigation' started by Classic Lighting, Jul 12, 2010.

  1. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    I hate to agree with boots :cry:
     
  2. WalkGood

    WalkGood LawnSite Bronze Member
    Posts: 1,910

    If you can, turn "off" half of the VAN nozzles and see what the others do.

    I've seen a whole zone of VANs @ 180* each where they all leaked some around the seals (10 yrs old). They all sprayed but not well. After replacing them all, pressure and performance was just fine.

    Could also be that the valve for that particular zone is faulty and not opening all the way. Could also be a partial blockage in the zone.
     
  3. Classic Lighting

    Classic Lighting LawnSite Senior Member
    Posts: 487

    Thanks to all who posted. I changed out the VAN's to 10' fixed sprays and fixed the pressure problems. Zone 1 when from 15 psi to 40 psi and Zone 4 went from 10 to 37 psi. All appears to work correctly. It is amazing how much pressure the VANS eat up.
     
  4. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    Ooops. meant to start a new thread. My bad.
     
  5. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,867

    What, you think a new thread costs money?
     
  6. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    Can I pay that in installments?
     
  7. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,867

    Well spoken, kemosabe :)
     
  8. Sprinkus

    Sprinkus LawnSite Silver Member
    Posts: 2,072

    Pumps do what they do unless there is a problem with them.
    Pump impellers wear out.
    Pumps sometimes have low voltage to them due to electrical issues.
    Pump intakes can have air leaks and/or clogged foot valves.
    The pump curve chart, along with the depth to the intake, would be the first things that I would look at.
    Well, that and looking to see if some doofus installed all VAN nozzles.
     
  9. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    :laugh::laugh::laugh:
     
  10. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Posts: 5,879

    mp conversion and burn that motor out.
     

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