How to Cap Sprinkler Heads | Experts Tips You Have to Read


If you own an irrigation head, you’ll face many issues with the cap of your sprinkler head. Capping a sprinkler head can be caused by various reasons like freezing, winterization, or stopping excessive watering. Therefore, capping sprinklers save money as well as the water is wasted. To cap the sprinkler, it is necessary to know what you can do to cap the sprinkler head. In this article, I will show you how to cap sprinkler heads. For this, you need to remove the existing cap to replace it with an open cap or, in some cases, it is possible to altogether remove the sprinkler head and then cap it by using a cap made of PVC pipe cap.

How to cap a sprinkler heads

Sometimes, you do not require all the sprinkler heads that are in one zone. For example, maybe they’re too close and overwatering your lawn in one location. But, on the other hand, it could be a place where you do not have something to the water. In this instance, it’s a great idea to close off the head of your sprinkler. So, now we will discuss how to cap a sprinkler heads.

Tools you’ll require to cap a sprinkler: The first thing to find is the correct cap with the sprinkler system you have. Many systems come with caps or plugs for them, and you likely have one lying around in someplace. If you can’t find it or don’t possess one, you can purchase one from the hardware shop.

There may be a need for pliers if the sprinkler head is challenging to remove. Additionally, you should have Teflon tape to put on the threads to form an excellent seal. You don’t want to be leaking. Teflon tape does the exact thing as a plumber’s tape, in case you weren’t sure.

Turn off the water

Make sure to turn the water off before starting. It is not a good idea being work in the lines at the time the sprinkler goes on. Its shutoff for the sprinklers must be on the opposite side of your home, close to the primary water shutoff. Be sure to put it entirely in the off position before proceeding with the procedure.

Find the end of the line

You must know where the dead-ends are to ensure that you don’t stop at the end of the line. On the line. If you decide to cap off the line at the end, the water has in a void, which means the pressure of water will decrease. Another reason why you don’t need to seal off the dead-end is that it could freeze. The water that remains in the space that’s been closed off is unable to go. During the winter months, it could cause a break in the line. The best thing to do is to dry the hose and wrap some red plumber’s tape to ensure that you know that it’s an endpoint. You can mark it however you like.

Dig away the dirt

Utilize a garden trowel or a shovel to dig into the ground away from where the sprinkler heads you wish to seal off. Dig about 1 to 2 inches between the head of your sprinkler so that you can reach the head. Let the dirt go to the side so that you can quickly pack it back in its place after you’re done. Be sure that you ensure that none of the dirt goes into the system once you’ve removed the head of your sprinkler. Ideally, you have a bin where you can place the dirt in to keep it away from the sprinkler head. Additionally, you can put it back in place rather than scraping it.

Remove the sprinkler head

The removal of the sprinkler head should not be difficult. It should be possible to remove it by hand. If it’s not tight enough, then you might require a plier to take it off instead. Be careful not to cause damage to it. If you notice that you’re looking to stop the line near your line’s end, you could also solve the issue. Utilize PVC cutters and cut off the pipe to just over the sprinkler head at its end. Allow the space to allow the cap to weld on the other edge of the pipeline. Clean the pipe using PVC primer and then wait for it to fully dry. When it’s dry, apply PVC cement on the top of the line and the inside of the cap. Turn the cap around at the side of the line rapidly before the adhesive can dry.

Install the cap

Before installation cap on sprinkler heads cleaning the threads on the riser, then install Teflon tape. It should wrapp around three or four times. This creates a solid seal so that the cap will not leak. When you are ready to put the cap on, simply tighten it with a friendly and secure. It is not necessary to apply the pliers to tighten the cap. But, you shouldn’t try to make it tighter than necessary; otherwise, it could cause cracks in the cap. Instead, be sure that it’s tight enough that it’s well and secure. However, you shouldn’t make use of pliers to tighten it. Hands are perfectly appropriate for the degree of tightness that the cap must be.

Test the seal

It is essential to ensure that the cap seal to not leak and let dirt in the lines. First, switch on the sprinkler for several minutes to ensure that there is no water coming out in any way. After that, turn the water off while you put in the dirt on the sprinkler head. Make sure to turn the sprinkler again when you’re done. If it is not done, the sprinkler will not go to function.

How does a sprinkler cap work

Before installing a cap, it is essential to know the way it functions. If you don’t need to worry about frozen pipes, the water will still flow through the lines connecting to the sprinkler head that you’re covering off. The cap is simply over the sprinkler head, ideally with a watertight seal. So the water can’t escape from the head. However, the other sprinkler heads working in the system help relieve the pressure. The seal quality on the cap is the most crucial thing. Put the cap under pressure by the other parts of your system, so it should be sturdy. We suggest you try to cover your sprinkler head with a cap designed specifically for this system.

A helpful guide: How many sprinkler heads per zone

How to Cap Sprinkler Heads

More sprinkler head issues

What happens if you’ve not repair cap of sprinkler heads or pipe? What happens if one of several sprinkler heads isn’t emitting water? There could be one that doesn’t show up in the future. Your lawnmowers could have caused damage to one of the heads. There are simple solutions to these issues too.

Leaking lines

It shouldn’t be challenging to locate the leak as the soil around it will appear damp. However, if you notice a moist area in your lawn but there isn’t a sprinkler head, then you may have an issue. Make sure to carefully dig up the leak. Be sure not to harm the line. Determine the source of the leak and wrap it up with Teflon adhesive or sealer. If leaks are serious, it is possible to be able to tear the lines to replace them. Read this article to find out leak in sprinkler system.

Clogged sprinkler heads

If one of the sprinkler heads in your system isn’t emitting water anymore, it is necessary to locate it and clean it up or change it. It is usually a matter of washing away dirt or unpacking the head. Then, the head should remove, and wash it clean before putting it back with the riser.

Broken sprinkler head

A damaged sprinkler head is simple to repair. The tricky part is choosing the correct sprinkler head. First, you must identify the maker of your sprinkler systems to choose the best one. Also, take a look at the nozzle and ensure that you have the proper size for the nozzle, as well. Finally, if the head is damaged, you can dig it up from the other sprinkler heads and get the data. You can then go into the store and purchase an entirely new head. Take the old one along with you in case you’re not confident of the manufacturer. Hardware associates will be able to assist in locating the item you require. The head can be replaced easily, but be sure to cover the threads with Teflon tape to prevent leaks. It is not a good idea to remove it over the next few weeks to repair the leak.

Lines with kinked

If your lines run underground, it is possible to dig them out to inspect them too. Sometimes, the lines get bent because the sprinkler system lines are buried far enough into the ground. The weight of the soil ends with the hose kinking, rendering it inaccessible for water to pass through.

How to cap sprinkler heads: Important tips

Like any other item you use, it is essential to conduct routine maintenance to ensure that it functions correctly. Every six months or so, make sure to check every line for any leaks or obstructions. There is no need to dig it out to avoid it. Walk across the line of sprinklers after it has run and check for the areas or puddles which are drier than others. It is also advisable to take the time to walk around the system as it is running to check how it’s performing. If one of the sprinkler heads is firing incorrectly or is not spraying well, you must examine the issue. First, switch out the flow of water. Then dig around the head and look for leaks or clogs. Regular maintenance will reduce your expenses in the long run.


In conclusion, to prevent any damage or destruction to your yard, it’s vital to install a cap over the sprinkler. However, if you find that the sprinkler head has broken, you can place a PVC pipe cap onto the base of the sprinkler or change the sprinkler head. Sprinkler pipe provides support to the bottom of the sprinkler. It is therefore concluded that the use of a cap could help you avoid a lot of problems. Learn the best way to put cap on sprinkler heads, and then begin the process.

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