Master valve or not

Discussion in 'Irrigation' started by turfman59, Jun 29, 2003.

  1. turfman59

    turfman59 LawnSite Senior Member
    Messages: 801

    I have heard several opinions on master valves.
    I can see advantages only, can anyone give me the cons to a master valve.
  2. JeffY

    JeffY LawnSite Senior Member
    Messages: 324


    Requires additional wire length to connect valves.

    Requires an additional box for 2nd set of valves.

    Requires extra connections, thus maybe more labor intensive as you'll have to dig more holes.

    For me, it all depends on the layout of the lot. So I vary between using master valves and not.
  3. dforbes

    dforbes LawnSite Member
    Messages: 195

    extra wire to connect valve $2.00
    extra valve box for valve $2.00
    extra valve labor to dig hole and backfill $20.00
    knowing I won't get a call at three in the morning because the main line busted.
  4. greenworldh20

    greenworldh20 LawnSite Senior Member
    Messages: 659

    we only put master valves on systems that have poly main lines...pvc main lines will hold an incredible amount of pressure if installed correctly...notice i wrote 'installed correctly'.

  5. HBFOXJr

    HBFOXJr LawnSite Bronze Member
    Messages: 1,712

    Never done in our area and it is one more thing to go wrong and diagnose.
  6. turfman59

    turfman59 LawnSite Senior Member
    Messages: 801

    wow I thought Evart had great pressure at 65 psi must be you use pvc because your dealing with 120 psi ?
  7. DanaMac

    DanaMac LawnSite Fanatic
    Messages: 13,209

    Makes working on the system tougher if the client isn't home and timer is indoors. I particularly don't like them unless for large commercial - saves mucho water if the mainline breaks or valve is stuck oper due to debris or diaphragm damage

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