Hunter Swing Joint---hurt water flow rate

Discussion in 'Irrigation' started by ed2hess, Aug 1, 2008.

  1. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,361

    We have been installing a lot of Hunter swing joints on rotor replacements. I noticed today that regardless of whether I use the 1/2" size or the 3/4" ones the size of the funny pipe is the same. Those opening are pretty darn small, looks less than 1/2", and wouldn't this restrict water flow? Are there other alternatives?
  2. Dirty Water

    Dirty Water LawnSite Fanatic
    Messages: 6,794

    Flow loss over 1' is not an issue.

    I don't upsize swing joints until I get up to 1" inlet heads.
  3. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 26,799

    Ditto, nothing to worry about.
  4. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,148

    It's not a big deal, but in low flow situations, it could affect the performance.
    I go to a solid swing joint if I'm asking for more than 6 gpm. You lose 2 psi
    with a flexible swing joint.

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