One of the many advantages of the 1800-series sprinkler is
that it is easy to flush and clean. To remove the nozzle simply
pull up the pop up part of the sprinkler (the stem) and the
nozzle is on the very top. Holding tightly onto the stem with
one hand, turn the nozzle counterclockwise until it separates
from the stem. You do not need to turn the screw on top to
remove the nozzle; it is just for adjusting how far the stream
throws. As you remove the nozzle, you should see a screen
inside the riser. Pull out the screen and rinse both the nozzle
and screen in clean water. Never clean plastic nozzle orifices
with wire or a wire brush because this can deform the interior
passages and lower the quality of nozzle performance. If the
nozzle is blocked and cannot be cleaned, you will have to
replace the nozzle with another one of the same type. The
type of nozzle is stamped into the top of the nozzle and is
designated by numbers and some letters. A few examples of
this would be "15H", "9SST", or "10VAN".
Before replacing the screen and nozzle, open the valve and
flush out the head. Turn off the station, then put the screen
and nozzle back into place and turn the zone back on. After
this cleaning, you may need to re-adjust the direction of
the sprinkler's spray. You can make these adjustments by grabbing
and twisting the stem (the part that pops up) left or right
until the spray of water is confined to the area that needs
to be watered. The stem may be somewhat difficult to turn
and will make a ratcheting noise when turned, which is normal.
HOW DO I ADJUST THE SPRAY
ON MY 1800 SERIES SPRINKLERS?
First look at the designation on top of the nozzle. Many
of the nozzles have certain patterns and arcs that are non-adjustable.
For example a 12Q nozzle will throw a twelve- foot long quarter
of a circle (90 degree) arc spray. The only thing that can
be adjusted on these fixed arc nozzles is the distance. To
do this, simply turn the silver screw on the top of the nozzle
to the left to increase the water flow through the nozzle.
Turn it to the right (tighten the screw) to reduce the throw.
The recommended minimum throw distance on the 15-foot nozzle
is 10 feet. If you need to reduce the radius to less than
10 feet, or have any other questions concerning adjusting
or concerning the 1800 series, contact the Technical Center
at 1-800-724-6247 for assistance. You can also aim the nozzle
by firmly grasping and turning the pop-up stem. The stem incorporates
a ratchet that will hold the spray nozzle in its new orientation.
