leaking pipes

Discussion in 'Irrigation' started by zliminator, Dec 8, 2006.

  1. zliminator

    zliminator LawnSite Member
    Posts: 82

    After wrapping the threaded 1" adapters with teflon tape for the inlet of the valves, sometimes they still leak. I've decided to start glueing them in. I have one that's leaking and I would've had to ripe the whole valve box out and redo it all over again. Is there anything I can do to stop the leak? Is there something I can wrap around it? I drips about once every 2 or 3 sec. I'm wondering how much that is in a year.

    Dan
     
  2. jerryrwm

    jerryrwm LawnSite Bronze Member
    Posts: 1,274

    Need to go 1/4 turn more. If you are thinking of glueing the MA in, you would be money ahead if you just bought the slip valves. Then they are glued on and no threads to mess with, and no more MA to buy.
     
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,966

    In Florida, just go with slip valves (and don't be over-sloppy with the glue) - no real need to have the freedom of movement the threaded valves give you. And if you must have the freedom to replace individual valves, go with a manifold setup with unions on the valve inlets and outlets.
     
  4. Any time I use Teflon tape I always lube up the tape with some water.
    Also as a general rule : metal on metal need paste, metal on plastic/pvc needs tape and plastic/pvc on plastic/pvc needs tape.
     
  5. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,966

    Since I use Irritrol (Richdel design) valves, I way over-tape the supply-side male threads that go into the valve, since the valve thread geometry leaves a lot of space to fill (which is why those valves almost [knock wood :hammerhead:] never split at the threads)
     
  6. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    If your using tape, you should apply a bead of rector-seal or another form of lubricant to the threads.

    I use teflon tape on everything (plastic, galvinized, brass), I can count on one hand the number of leaks I've seen.
     
  7. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,966

    Teflon tape is cheap ~ plastic-safe sealant isn't. I'll just keep overtaping those Irritrols. Back when, it wasn't even an option, since some of the male adapters would bottom out in the valve inlet, unless one overtaped.
     
  8. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    One day, your monster manifold is going to split from too much teflon, and you will be hating yourself for putting 8 valves in a standard box.
     
  9. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,966

    Never!! [knock wood :hammerhead:] Those Irritrols were made for overtaping. Someday, all valves might be made with something like male acme threads (PVC unions) and will just about hand-tighten into place.
     
  10. zliminator

    zliminator LawnSite Member
    Posts: 82

    I would kill to find the slip connections. I'm using the watermaster valves from HD/Lowes. Maybe I should switch. I've had a lot of problems with those things leaking after I get them in. (With the threaded valves, it would be easy to rig up a test connection).

    Dan
     

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