Need some help with poly install

Discussion in 'Irrigation' started by PPD3195, Jun 3, 2012.

  1. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    Sooooo...the local sprinkler world hooked me up with a design that was all poly. I did the installation last fall and being the rookie that I was/am, I covered the lines up before the gray water came back on this spring.

    Now I'm dealing with leaks in most of the corners of my main line, which is poly. I have about two hundred feet of poly in the main line.

    First question, should I have put some type of pressure regulator in at the beginning of the line? They didn't put one in the system design, but maybe they should of?

    Second...do I need to rip that whole main line out and just redo it with pvc? I'm in Utah, so we do have some pretty cold winters. If there's an easier solution to this, I'd prefer it to ripping it out, but I want it done right.

    The grass is coming in about a week so I need to figure this out definitively.

    Thanks!
     
  2. BPS##

    BPS## LawnSite Senior Member
    from WY
    Posts: 828

    You didn't clamp your connections did you?
     
  3. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    Yes, they're all clamped. Is that a bad thing?? Maybe I didn't clamp them tight enough, being worried about breaking the plastic inserts.
     
  4. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    And let me clarify, I DID get to test the main line after installation before I covered it back up. It's just the lines from the valves I haven't turned on yet.

    I remember because there was one spot I forgot to clamp and it shot the elbow out like a rocket when I turned the water on :p
     
  5. BPS##

    BPS## LawnSite Senior Member
    from WY
    Posts: 828

    OK so you did clamp your connections. Thats what you should have done.
    That part is right.
    You can clamp pretty tight without breaking the inserts.


    Explain again with more detail where the leaks are.
    You shouldn't have to rip it out and do PVC.
     
  6. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    I have 4 90 degree turns as the main line goes around the house to the valve box and they have all leaked. It was just one yesterday. I dug it up and tightened the clamps till it stopped. Everything looked good last night. Now the other 3 are leaking!
     
  7. BPS##

    BPS## LawnSite Senior Member
    from WY
    Posts: 828

    Dig those up and tighten them.

    Double clamp if need be. Over the winter the pipe probably shrank some with cooler temps.

    Give that a try before you worry about replacing the whole line.
     
  8. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    Thanks a ton! I'll give that a try.

    You don't think I need to worry about pressure regulation at all? I'm not sure what it's at now, but if I need to I can run grab a gauge and check it.
     
  9. BPS##

    BPS## LawnSite Senior Member
    from WY
    Posts: 828

    What is the water source?

    City, well?
     
  10. PPD3195

    PPD3195 LawnSite Member
    Posts: 10

    City irrigation water.
     

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