Black Diamond uses some simple
    techniques to make sure your pop-up
    spray heads are in proper working
    condition. Here are a few tips of what
    to look for and how to fix it.

Q. What if my pop-up spray head is
spraying out a uneven distribution?

A. Remove the nozzle by unscrewing it
counterclockwise, pull filter out and
rinse out any small debris or particles.
Install nozzle back on to sprinkler body
and test.
Clogged nozzle