Sprinkler systems automatically water lawns and gardens so that property owners do not have to manually water their lawns themselves. However, these systems can sometimes break as a result of a variety of factors such as severe weather conditions or careless drivers. Some aspects of the sprinkler system repair are easy and routine, but any damage that occurs below ground can be difficult to fix.
Like with most repairs, you first need to figure out what is wrong with the sprinkler system in the first place. The two areas where the sprinklers usually break are the sprinkler head and the sprinkler system.
Sprinkler heads are somewhat exposed and can often break. One common way that sprinklers break is when a car runs over the sprinkler head. Also, sprinkler heads have risers that help the sprinkler rise to the right level. These risers can break and you will have to use pliers to twist and remove the riser. Before doing this, remove the sprinkler head.
Sprinkler systems use automated controls. Like with all electrical systems, the controls can sometimes break, especially when hit by a power surge. You can test the control system wires with a voltage meter that can detect if electricity is actually passing through the system.
Lines are much more difficult to fix. You will need to figure out exactly where the line is broken, which is usually wherever a puddle forms in the lawn, since the broken line will leak out large amounts of water.
To replace the sprinkler head, dig a hole around the head, unscrew it and attach a new one. During this process, make sure that you do not get any dirt in the sprinkler line or the dirt can clog it or cause other problems.
To repair the line, mark where the leak is and shut off the water line. You must then dig up the pipe, locate the leak, cut out the broken parts of the pipe with a hacksaw or a pipe cutter and couple in a replacement line where the old line was using an expansion repair coupling. Put adhesive both on the inside of the expanding coupler and on the outside edges of the old pipes so that when you expand the new pipe, the adhesive will hold the new line together. Wait 10 minutes for the adhesive to cure. Test the water line to see if there's no leak. Afterward, fill the hole back in.
After you have fixed the sprinkler head and the riser, test the sprinkler to make sure that the new head works properly.