A lawn sprinkler hydrates your plants every now and then depending on the timer set. This keeps your plants from withering. Lawn sprinklers maintain the freshness of your plants. It keeps the grass looking green.

How does a lawn sprinkler work exactly? Well, a controller sends a signal to the control valves in the control valve box. The valves open, sending water through the underground water line, which causes the sprinkler heads to pop up and spray.

Lawn sprinklers are extremely handy but they also break down once in a while. The repairs are fairly easy so don’t worry. The best solutions will be provided.

Common problems:

  • Sprinkler heads not working
  • Low water pressure
  • Zone terminal not working

Problem one: Sprinkler heads not working This problem arises when the lawn sprinklers are set too high. Damage of the sprinkler heads may also be caused by it frequently hit or run over by vehicles. It is quite easy to identify this problem. The heads may be spraying too much or too little water. It is also possible that the water sprays in wild patterns

Solution: The easiest and cheapest solution is to clean the sprinkler heads. Dirt or soil may have caused the sprinkler head to clog thus blocking the passage of water. Simply unscrew the head and clean it. Another convenient solution is to replace the damaged heads. Make sure to buy the same sprinkler head you are replacing. Ask for assistance in a hardware store or home center just in case you aren’t sure. They will gladly help you out.

Problem two: Low water pressure A lawn sprinkler with low water pressure barely sprays water to the surrounding plants. The valves of the device might not be open or there are some damages.

Solution: The least difficult way is to make sure that valves at the back flow device are not closed. Fully open them by turning the valve of the horizontal pipe first followed by the vertical pipe valve. To know it it is really open, check the position of the handle and the pipe. The valve is open when the handle is parallel with the pipe. Another solution is looking for leaks in the pipes. To fix the leak, use a hacksaw to cut out a four inch section of line at the leak. Place a clamp on one of the line ends, insert a slip coupling, then tighten the clamp. Place a clamp on the second pipe end, expand the slip coupling while inserting the nipple into the pipe, then tighten the clamp.

Problem three: Zone terminal not working This may be caused by low voltage. In rare cases, the zone terminal may be struck by lightning.

Solution: If it does not turn on then it is suspected to be an electrical problem. Make sure the wires are attached to its proper places and are secured well. Check the voltage of the zone terminal using a multimeter. The normal voltage is between 24 to 28 volts. If it falls below that range, test the transformer. The normal range is still between 24 to 28 volts. When it drops to 22 volts, it is time to replace the defective valve.