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Thread: 1" poly pipe

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  1. #1
    DIY Senior Member v1rtu0s1ty's Avatar
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    Default 1" poly pipe

    Hi folks,

    I went to M3nards to look for a black 1" poly pipe. They don't have it. The polypipe I saw at Home Depot was only 1/2". Where can I buy them? And are they expensive?

    Thanks,

    Neil

  2. #2
    Plumber jimbo's Avatar
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    The tubing you see at home depot is probably not poly pipe. They sell 2 different things....drip irrigation tubing, which is not suitable for main service, and "funny pipe"....a very heavy wall tubing used for sprinler head installs; also not suitable for main service because it uses only push-in fittings, not clamped fittings.


    Poly pipe is available from a plumbing supply, and probably also an irrigation supply dealer.

  3. #3
    DIY Member msgale's Avatar
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    Default HD does sell some poly pipe..

    i have seen it there, in lower pressure ratings
    Keep in mind, however there are different wall thcknesses, corrsesponding w different pressure ratings.
    and the thickest wall, highest pressure pipe is not easy to insert fittings into, need a hot water bath first.

    also, there are probably some rules for pressure ratings of pipe to be buried

  4. #4
    DIY Senior Member v1rtu0s1ty's Avatar
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    I found 1" poly pipes for $75 at 300 ft. I have not ordered yet. I found it from a guy who does patio installation and landscaping. They also install irrigation.

    Anyways, the head that I would like to use is either RainBird 52SA ord 5505S. Both models use 3/4" NPT or BSP female threaded inlet. So, what do I need to attach the sprinkler head to the 1" poly pipe?

    Thanks!

  5. #5
    In the Trades Bob NH's Avatar
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    Quote Originally Posted by v1rtu0s1ty View Post
    I found 1" poly pipes for $75 at 300 ft. I have not ordered yet. I found it from a guy who does patio installation and landscaping. They also install irrigation.

    Anyways, the head that I would like to use is either RainBird 52SA ord 5505S. Both models use 3/4" NPT or BSP female threaded inlet. So, what do I need to attach the sprinkler head to the 1" poly pipe?

    Thanks!
    You typically connect sprinkler heads to the 1" poly pipe using a tee that has 1" insert connections on the run (straight through the tee) and a 1/2" or 3/4" female pipe thread on the branch (the side of the tee). If you are at the end of the line you use a female elbow.

    You screw a nipple or riser into that branch outlet and connect the sprinkler head.

    I have found that schedule 80 PVC nipples are a lot more rugged and reliable than the risers sold at many stores like HD. You can buy assorted lengths of Schedule 80 nipples from Grainger.

    If you can't find the fittings at HD you can usually get them at a plumbing supply or irrigation place. I get mine from a house that specializes in plastic pipe; Portland Plastic Pipe in Portland, Maine. They don't have a web site. They don't even have email!

  6. #6
    DIY Senior Member v1rtu0s1ty's Avatar
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    Ok, now I know how schedule pvc 80 looks like. Most of them are color gray. The schedule 40 are always white.

    Anyways, picture below is a sched 80 pvc nipple. Hopefully, the image I posted is correct.

    I understand the connection from nipple to sprinkler head. However, I'm a bit lost on how I will connect the nipple to the 1" poly pipe since there is no thread on the pipe. What am I missing? Maybe, if you post a picture, I will understand it more clearer. Thanks.


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