Z Spray pump problem.

Discussion in 'Pesticide & Herbicide Application' started by ZMAX, Aug 16, 2011.

  1. ZMAX

    ZMAX LawnSite Member
    from Ohio
    Posts: 84

    I leave my levers down for my nozzles and just turn the pump on and off when i have to spot spray. Lately, the pump is taking 5seconds or so to build pressure and when i flip it off it slowly drops pressure, so the nozzles just leak out until the pump is at 0psi. would this be a problem with the pump or something else?
     
  2. RABBITMAN11

    RABBITMAN11 LawnSite Bronze Member
    Posts: 1,373

    Check your screen by the pump could be clogged. It has a gray cap that screws down.
     
  3. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Posts: 4,540

    the older models use check ball screens. make sure your screens have a "silver star" in the end. I made that mistake and when i picked up the foot lever my nozzles dripped.
     
  4. ant

    ant LawnSite Silver Member
    Posts: 2,442

    zmax what did u come up with? could be dirt cough in one of the boom valves.
     
  5. ZMAX

    ZMAX LawnSite Member
    from Ohio
    Posts: 84

    well, after another day or so the pump wouldn't build pressure, and when you shut off the pump the nozzles would leak. Turns out one of the plastic pieces that rests on the tank rubbed through and had a hole in it, so the pump was working fine.

    [​IMG] The piece that had a hole in it, is that T piece that sits on the tank in front.
     
  6. grassman177

    grassman177 LawnSite Fanatic
    Posts: 9,795

    at last, it has been discovered. good
     
  7. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Posts: 4,540

    glad to hear. pump sucking air. many times the fittings aren't tight. glad it was an easy fix
     
  8. specialtylc

    specialtylc LawnSite Bronze Member
    Posts: 1,656

    The hose reel needs to be turned off when using the boom. If its left on, the hose holds pressure that makes the boom drip after shutting the pump off.
     
  9. Runner

    Runner LawnSite Fanatic
    Posts: 13,496

    Glad you found it. The first thing I was going to point to was if there were any inline diaphragms (like the Permagreen has one right on the top of the tank). These will allow the fluid to leak down by not holding the siphon, also.
     

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