3/4" Backflow or 1" Backflow? GPM

Discussion in 'Irrigation' started by jbell36, Sep 25, 2013.

  1. grassman177

    grassman177 LawnSite Fanatic
    Messages: 9,795

    lol, just fixed a problem where they used pvc between the backflow and the gate vavle tap. idiots. been fixing tons of these the past few years with drought and ground movements. replace with all brass
  2. grassman177

    grassman177 LawnSite Fanatic
    Messages: 9,795

    I used to paste pvc, and tape brass to pvc. otherwise it always leaked . now I tape it all, using monster tape. that stuff is totally awesome.
  3. 1idejim

    1idejim LawnSite Fanatic
    Messages: 11,358


    Best I have ever used :)
    Posted via Mobile Device
  4. Irrigation Contractor

    Irrigation Contractor LawnSite Senior Member
    Messages: 424

    We switched to Blue Monster this year and the guys all prefer it.

    Basically, we match TX procedures especially the SCH nipples. Much better than SCH 40 male adapters.

    We use a 1 x 3/4 FPT reducer for additional support.
  5. jbell36

    jbell36 LawnSite Bronze Member
    from KANSAS
    Messages: 1,417

    EXACTLY...the drought is shifting these systems and one of the first things to break is the PLASTIC nipple between the angle valve and the backflow, i have had to replace 4 so far this year alone...just use a brass nipple to begin with

    and yes, the blue monster tape is awesome, simply easier to install than the thinner teflon
    Last edited: Sep 28, 2013
  6. grassman177

    grassman177 LawnSite Fanatic
    Messages: 9,795

    in fact, I have had pipe get ripped off the wall outside where the supply line comes out of the house(on some). I mean bad too, like when it finally snaps from the ground shifting against the foundation....it breaks apart about 8-12 inches. I have fixed some before they break, and you would wonder how it was not broken already....
  7. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 27,060

    I like the bluemonster Teflon tape and pipe dope also.
  8. jbailey52

    jbailey52 LawnSite Bronze Member
    Messages: 1,095

    Hey guys... Any of you have a picture of exactly what setup your talking about? I get lost in all the acronyms :)
    Posted via Mobile Device

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