Drip Irrigation Help!

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by tsingh, Mar 30, 2013.

  1. tsingh

    tsingh New Member

    Messages:
    5
    Location:
    hayward,ca
    I put together a drip irrigation system that looks as follows.
    1 - From a garden spigot => small lead hose => multi connector manifold => timer valve (attached to an orbit timer) => 20 psi pressure regulator => pvc adapter => hose connector => 1/2 inch drip irrigation hose => connector => 1/4 inch drip irrigation tubing => 1/2 gph red drip emitter.

    2 - The half inch tube runs around the garden as follow

    26 feet straight (part 1) => elbow connector => 5 feet (part 2) => 30 feet straight (part 3).

    3 - I have for 1/2 gph emitters towards the end of part 1 and one sprinkler type emitter towards the end of part 3.

    When I turn the system on (I have the spigot turned on only ust a little bit), either manually or automatically for 1 minute..the 4 1/2 gph emitters are spraying a stream of water instead of dripping.


    What am I doing wrong?

    Thanks

    Here is a picture of the system.

    IMG_20130330_110831.jpg
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,030
    Location:
    Cave Creek, Arizona
    YOU can't do anything "wrong" with a drip system. Either the emitters need to be adjusted or they are defective, or they are designed to emit a "stream" in order to deliver that gph.
  3. bluebinky

    bluebinky Member

    Messages:
    408
    Location:
    Santa Clara, CA
    Are you using feed-through emitters, or end emitters?
  4. wallskev

    wallskev New Member

    Messages:
    72
    Location:
    North Carolina,USA
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,030
    Location:
    Cave Creek, Arizona
    He has a flow control pressure regulator at the connection to the water line. The thing he DOESN'T have is a backflow preventer on the hose faucet, which is a universal requirement.
  6. tsingh

    tsingh New Member

    Messages:
    5
    Location:
    hayward,ca
    Exactly the problem. THANK YOU!!
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