(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Please help! DIY sprinkler job

Hybrid View

  1. #1
    DIY Junior Member heema's Avatar
    Join Date
    Apr 2011
    Location
    ND
    Posts
    1

    Default Please help! DIY sprinkler job

    I live in a frigid climate and am going to be using poly pipe for my irrigation system but reading through some irrigation manuals it says NOT to use poly when going from the main line to the valve manifold (due to rupture). I will have a plumber come and install the necessary equipment into the basement (shutoffs, fittings, etc...) all the way until the backflow preventer, then I will install copper pipe down into the ground and couple that to 1" poly and make my run to my 1st valve manifold ( I will have 2 manifolds and 4 valves). Will this be alright? If not, what do I use? When installing my valves on my mainline, should I tee off the main line a foot and then install my manifolds or can I install the manifolds on the main and continue to my next valve? Sorry if this sounds stupid and thanks for any and all info!

  2. #2
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,244

    Default

    I don't know if I follow exactly what your plan is, but I would pattern it similar to mine. I would teed off of the main line using copper and a stop and waste valve, then on to the back flow preventer with copper. You could use PVC after the valve. From the BFP, I transitioned from copper to PVC and that runs to my valve manifold. All 4 valves are on 1 manifold. I use PVC pipe for my zone lines as well. I guess you can tell I not a fan of poly pipe. I remove my BFP in the fall and blow the lines will compressed air. The BFV is tested, repaired if and when necessary, and recertified each spring, so I'm good to go for another season.

  3. #3
    DIY Senior Member SteveW's Avatar
    Join Date
    Feb 2005
    Location
    Omaha, NE
    Posts
    1,042

    Default

    I agree with Gary -

    we always used PVC between the backflow preventer and the manifold back when I used to work for a Toro factory-trained installer.

  4. #4

    Default

    I'm not saying this is the right way to do it, but I have 3 valve manifolds hundreds of feet away from the house on poly pipe and so far (5 years) I've had no problems. As long as the pipe is rated for the pressure I'm not sure why there would be a problem.

    -rick

  5. #5
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,244

    Default

    It may be just personal opinion. You are probably right, if the pipe is rated for the pressure there should be no problem. As far as the connections to the back flow, I prefer solid piping to provide support for the back flow.

Similar Threads

  1. sprinkler
    By bat in forum Irrigation / Sprinkler Forum
    Replies: 0
    Last Post: 07-10-2009, 05:22 AM
  2. Sprinkler valves
    By rockycmt in forum Irrigation / Sprinkler Forum
    Replies: 3
    Last Post: 11-29-2007, 08:20 AM
  3. Sprinkler Timer
    By ed the head in forum Irrigation / Sprinkler Forum
    Replies: 0
    Last Post: 03-08-2007, 06:18 PM
  4. pop up sprinkler
    By johnmvtv in forum Irrigation / Sprinkler Forum
    Replies: 6
    Last Post: 01-31-2007, 07:31 AM
  5. sprinkler job
    By chichi3969 in forum Irrigation / Sprinkler Forum
    Replies: 3
    Last Post: 03-01-2006, 10:55 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •