If 240 Ohms of Resistance is normal...

Discussion in 'Irrigation' started by deekay1622, May 29, 2014.

  1. irritation

    irritation LawnSite Gold Member
    Messages: 3,422

    Yea, I've seen a few but the systems have either been abandoned or totally renovated.
  2. Kiril

    Kiril LawnSite Fanatic
    Messages: 18,315

    I'll spec them on any system as a master valve.
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,793

    the cool thing about the 2000 valve was on option to have the diaphragm assembly "reverse spring loaded" - when the supply pressure was down to zero, the valve opens slightly, and water can drain back through the valve - allowing system winterizing with a single drain on the supply side, assuming trenched pipe laid with the proper slope

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