Discussion in 'Irrigation' started by ckungis, Oct 4, 2007.

  1. ckungis

    ckungis LawnSite Member
    Messages: 3

    I am having a problem with one on of are installayion we have 9 valves system. The house is on city water, the PSI out of the spkicket is 62.
    Zone 1 has 4 turf Spary heads
    Zone 2 has 4 Bed misters
    Zone 3 has 3 Bed misters
    These zone are fine..........
    Zones 4-9 all have 3 bed misters per zone seem to have very low pressure.
    I took the valves out and flush those zones out. And they still don't work.
    Anyone have any Ideas?
  2. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,201

    Take a flow test off your backflow or old is the system?
    Are these in a manifold or remote boxes?
  3. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,171

    Spell check.:laugh: Need more information...crap inline...any filters?
  4. bigred1

    bigred1 LawnSite Member
    Messages: 11

    Is this one of those trick questions off the Texas licensing exam? How many feet of pipe do you have from zone 3 to zone 4 (mainline)? Have you calculated your pressure loss?
  5. DGomez

    DGomez LawnSite Member
    Messages: 9

    Do you have any kind of site plan? Have you run the hydraulics for the entire system or at least the most taxed zone???
  6. PurpHaze

    PurpHaze LawnSite Fanatic
    Messages: 5,496

    You state that zones 4-9 have low pressure so I'm assuming that they do indeed fire from the controller meaning there isn't a wiring problem.

    If the zones are in a "straight line" of supply you might have some type of restiction between valves 3 and 4. You mention pressure but nothing about main line pipe size and available GPM throughout the system. Is the main line the same size from POC to last valve? Need more info.

    Are all the valves the same type and do they have flow control or pressure regulators on them? Are all the solenoids fully opening?

    What type/brand on "misters" on on the problematic zones and have they been checked for clogging, etc.?
  7. Kiril

    Kiril LawnSite Fanatic
    Messages: 18,335

    Do the valves have flow control and if so are they full open?

    Werd purp.
  8. ckungis

    ckungis LawnSite Member
    Messages: 3

    The System is A MONTH old
    They are in a Manifold
  9. ckungis

    ckungis LawnSite Member
    Messages: 3

    GPM throughout the system 16 GPM
    the whole system's pipe is 1"
    The valves are all hunters pressure regultors. all the Solenoids are fully opening
    The Misters are Rain birds
  10. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,171

    AND, the in over his head award goes to..da dat ta da..ckungis!:hammerhead:

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