Noise from PVB

Discussion in 'Irrigation' started by GrassRatt, Aug 4, 2008.

  1. GrassRatt

    GrassRatt LawnSite Member
    Messages: 6

    I've had a system in for about a year now, and all of a sudden it started making like a howling noise, and its not just the sound of the water flowing through the pipes.
    The vacuum breaker is a 1" Watts with all one inch pipe and valves. Zones 1 and 2 are 1800's and 3-6 are i20's. Sometimes for some reason zone 2 will not make the noise but all the other zones always makes noise.
    I went into the basement and isolated the line coming from the main to make sure it wasn't vibrating againts something and that is not the problem.
     
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,059

    call Homeland Security
     
  3. Gruneich Lawn Care Inc.

    Gruneich Lawn Care Inc. LawnSite Senior Member
    from SD
    Messages: 295

    Probally has something to do with the i20's......:laugh:
     
  4. bicmudpuppy

    bicmudpuppy LawnSite Silver Member
    Messages: 2,781

    This site is FULL of threads about pipe "noise" one of them is bound to help.
     
  5. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,059

    Water meters are known to howl when their bearings fail,
     
  6. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,121

    gpm psi ? what is your service size? what is your meter size?

    is it clunking or just screaming?
     
  7. GrassRatt

    GrassRatt LawnSite Member
    Messages: 6

    GPM is 16, psi about 60, service size 1" 3/4" meter.

    Just screams
     
  8. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,121

    how is it piped after the pvb?
     
  9. FIMCO-MEISTER

    FIMCO-MEISTER Banned
    Messages: 18,668

    Sounds like your warranty just ran out. Call the contractor and get an extended warranty and the howling will disappear.
     
  10. GrassRatt

    GrassRatt LawnSite Member
    Messages: 6

    1" copper to the ground then poly to the 1" pvc manifold and then all 1" poly to the zones.
    The system worked fine up to about a week ago when it started making noise, the house is just over a year old so the meter should not be going bad.
     

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