Funny Pipe Length?

Discussion in 'Irrigation' started by jeffinsgf, Jul 27, 2007.

  1. jeffinsgf

    jeffinsgf LawnSite Senior Member
    Messages: 641

    My yard is evolving. The "yard" is bounded by woods, driveways, and naturalized prairie plantings. As my young zoysia has set its feet and the prairie has developed its character, the edges have been somewhat fluid. The driveways have been an ongoing project as well.

    So now I have a half dozen heads that I would like to move a few feet. Right now I have a mix of 6" ready made Hunter swing joints and 6" to 9" funny pipe connections. How far can I run blue line funny pipe before I start seeing significant alterations in flow and pressure? I would love for the answer to be 8 - 10 feet. I could live with 4 or 5. If it is 2 or 3, I'll have a lot more digging and gluing to do.

    Messages: 18,668

    Since you are going to have to dig up the head regardless just do a quick above ground test with the length you need and see what happens.
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,755

    No problem with 8-10 feet. I will exceed 20 feet for a single head (3-4 gpm) and no worries.
  4. SprinklerGuy

    SprinklerGuy LawnSite Bronze Member
    Messages: 1,778

    Ditto what boots said....I prefer not to..but I have done it....
  5. Dirty Water

    Dirty Water LawnSite Fanatic
    Messages: 6,794

    The most I've done is about 15 feet, and while the spray was fine, I still felt bad about it.

  6. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,171

    Start asking for some big water thru that stuff & the friction loss will kill you.
  7. NC_Irrigator

    NC_Irrigator LawnSite Bronze Member
    from NC
    Messages: 1,455

    I feel the same way.
  8. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,201

    Ive done some pretty long funny runs...

    its not the end of the world..sometimes i use 3/4 poly when possible..

    but @ times its my only choice.

    Messages: 18,668

    When I want someting more sturdy than blank netafim for drip runs I use f pipe and put in barb-barb,1/2 nt tees. Off that we do our drip runs. since I've started using Hunter swing joints my f pipe usage has dropped way down.
  10. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,755

    The pipe itself is probably less of a pressure-loss factor than the funny elbows, at least until you get to runs of 20 feet or so.

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