A Rainbird 1800-series sprinkler is a pop-up style sprinkler that offers irrigation to residential and commercial properties. It has a 4-inch stem or riser and provides spray distances from 6 feet to 15 feet. The stem can also be adjusted so the sprinkler faces the desired watering area. You change the watering distance with a screw on top of the sprinkler. Replacing the sprinkler head on the 1800 series allows for different spray patterns. With adjustable spray heads, you can change the watering pattern from -17.8 degrees C to 360 degrees.
Adjust the Rainbird 1800s watering direction. Turn on the sprinkler or pull up on the stem or riser. Turn the stem by hand until it faces the desired watering area.
Adjust the spray distance. Insert a flathead screwdriver into the adjustment screw located on top of the sprinkler. Turning the screw clockwisereduces the spray distance. Turning the screw counterclockwise increases it. The spray distance can be changed by 25 per cent.
Adjust the spray pattern on the sprinkler. This applies to the Rainbird 1800 series heads that have adjustable-pattern nozzles. Twist the threads on the collar by hand to makethe adjustments. Twist the threads to the right or left as needed to increase or decrease the spray pattern.
Replace the nozzle. To replace the Rainbird 1800 series nozzle, grab the existing nozzle and turn it to the left or counterclockwise to loosen and remove it. Use a flat head screwdriver to pry up and remove the existing filter screen below the nozzle and inside the stem. Insert the new filter screen and attach the new nozzle by threading it onto the stem and turning it clockwise to tighten it.