Sprinkler Head Leaking When Off: The Common Causes and What to Do

The head is likely leaking if you’ve noticed water puddling near your sprinkler head. This can be a big problem, as a leaky sprinkler head can waste lots of water and lead to some severe damage.

This article will discuss the common causes of sprinkler head leaks and what you can do to fix them. We’ll also cover when it might be necessary to replace the head altogether.


Common Causes Of Leaky Sprinkler Head

sprinkler head leaking when off

There are a few different things that can cause your sprinkler head to start leaking. The most common causes are:

Low-Head Drainage

Low-Head Drainage is one of the most common causes of a sprinkler head leak. When water pressure is low, it can cause drainage from the sprinkler head, even when the system is turned off.

This type of leak is often caused by a clogged or damaged filter and can be fixed by replacing the filter or cleaning out the debris. If you have a low-head drainage leak, you may also notice that your sprinkler heads are not popping up as high as they used to.

This is because the water pressure is not strong enough to push them up all the way. Low-head drainage leaks can be fixed by increasing the water pressure or replacing the damaged filter.

Broken Diaphragm

Another common cause of a sprinkler head leak is a broken diaphragm. The diaphragm is a rubber seal that prevents water from leaking from the sprinkler head. If this seal is damaged, it can cause water to leak out, even when the system is turned off. A broken diaphragm can be fixed by replacing the damaged part.

Worn-Out Gaskets

Over time, the gaskets in your sprinkler heads can become worn out and damaged. This can cause water to leak out, even when the system is turned off. Gaskets can be replaced, but replacing the entire sprinkler head is often easier.

Broken Sprinkler Head

If your sprinkler head is leaking when it’s turned off, it’s likely because the head is broken. This is one of the most common causes of a sprinkler head leak.

There are a few things you can do to try to fix a broken sprinkler head:

-Try to tighten the screw that holds the head in place.

-If the head is cracked, you can try to glue it back together.

-If the O-ring is damaged, you can try to replace it.

However, it’s best to replace the entire sprinkler head in most cases. This will ensure that your sprinkler system is working properly and that your lawn is getting the right water.

Clogged Sprinkler Head

sprinkler head leaking when off

The most common reason for a sprinkler head leak is a clogged nozzle. The best way to clean your nozzle is to remove it and soak it in a vinegar solution overnight. Use an old toothbrush to scrub away any remaining dirt or debris in the morning.

If your sprinkler head still leaks after cleaning the nozzle, you may need to replace the entire sprinkler head.

Line Breakage or Blockage

The most common reason for a sprinkler head leak is a break or blockage in the line. If you have a break in your line, you will need to replace the entire section of pipe from the main water source to the sprinkler head. If you have a blockage, you must clear it using a plunger or a snake.


Tips On Maintaining Your Sprinkler System

sprinkler head leaking when off

Properly maintaining your sprinkler system is the best way to prevent a leaky sprinkler head. Here are a few tips:

  • Check your sprinkler heads regularly for damage or wear and tear.-If you have a clogged nozzle, clean it out as soon as possible.
  • Replace damaged or worn-out parts immediately.
  • If you have a low-head drainage leak, increase the water pressure or replace the damaged filter.
  • Be sure to winterize your sprinkler system correctly to prevent damage from freezing temperatures.

Sprinkler Head Leaking When Off: Conclusion

A leaky sprinkler head can be a nuisance, but it’s usually an easy problem to fix. In most cases, you can replace the damaged part or clean the nozzle.

However, if your sprinkler head is old or severely damaged, you may need to replace the entire unit. With proper maintenance, you can prevent leaks and keep your sprinkler system in good working condition.