Things Needed
Lawn irrigation system that have an elevation modification of more than two or three feet are subject to humiliated - head drain . Water in the lines flows to the last point unless stopped , which means that the sprinkler at the low full stop in the zone will slabber after the valve close . This make puddle around the sprinkler , do in body of water and introduce gentle wind into the product line , which is hard on the sprinklers when they next open . you’re able to quickly confirm that the problem is low - head drain by observing the other sprinklers in the geographical zone . If they ’re leak , too , it is a valve problem . If only the low head is seeping , an anti - drain curb valve will work out the trouble . There are two solution .
Option 1: Sprinkler Specific Check Valve
Step 1
plough the retaining collar at the top of the sprinkler counterclockwise until the collar and sprinkler mechanics are free from the trapping . Remove the sprinkler mechanism .
Step 2
hit the filter screen place at the bottom of the sprinkler chemical mechanism . A dental pick is an idealistic tool for this job . Needle - olfactory organ pliers will work , too . The screen is press - fit , there are no threads . Do not seek to unscrew it , just pull it out .
Step 3
Press the filter screenland with check valve into place and reinstall the sprinkler into the housing .
Option 2: Inline Anti-Drain Check Valve
savvy around the sprinkler cautiously , using a shovel , until the living accommodations and the connection between the sprinkler and the pipe are exposed .
Turn the housing counterclockwise until it is liberal from the wind fitting at the floor . The threaded try-on is on a riser pipe or flexible joint that connects to the principal pipe . The riser pipe or flexible joint must be modify to earmark for the height of the inline check valve . This is situation - specific and will require evaluation of the materials used and the options useable .
wander the inline check valve onto the threaded accommodation .
Step 4
Thread the sprinkler living accommodations onto the inline check valve .
Step 5
Backfill around the sprinkler . Tamp , level and replace the sod .
Tip
pick 1 is the best pick if your model sprinkler has an optional internal check valve usable . The two most wide distribute sprinkler on the market ( the Rain Bird 5000 and the Hunter PGP ) have this optional available . Other good example may not . watch with your irrigation supplier . If your model of sprinkler does not have the alternative to add an internal bank check valve , the inline control valve choice will work . Because of the elevation increase from the check valve , and the price of the arrest valve itself , it may be easier and more economical to replace the integral sprinkler with one that has an internal chip valve .
Warning
bridle valves became mandatory on irrigation systems in California in 2010 . Other states with crocked weewee supplying and growing need will likely follow .
