How to change the spinkler pattern?

Discussion in 'Irrigation / Sprinkler Forum' started by jlaplant, Jun 13, 2008.

  1. jlaplant

    jlaplant New Member

    Jun 13, 2008
    Hi have a Rainbird model 21AP00 sprinkler head. It currently sprays at 180 degrees. I would like to do 2 things:

    1. Make the sprinkler head to spray 360 degrees.
    2. Make the spray distance further.

    Can you help?
  2. Gary Swart

    Gary Swart In the Trades

    Sep 1, 2004
    Yakima WA
    A quick Google search shows that the 21AP is a rotary impact head. The RB impacts that I am familiar with can easily be adjusted to any degree of circle you wish, and by simply flipping the wire trip upward will operate full circle. The distance they will throw is regulated by adjusting a screw the the water stream passes. I have not actually seen this model, but I have to believe it would be similar.
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  4. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego, CA
  5. jlaplant

    jlaplant New Member

    Jun 13, 2008

    Guys thanks for the information. I figured out that you have to take a small band off the sprinkler while it is on. Once you have that you push down on the sprinkler head and twist it 90 degrees until you find tha pattern you want. It was rather easy once I figured that out. Thanks for the help!
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