How to Cap Sprinkler Heads | 10 DIY Steps with Images

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When it comes to maintaining your lawn or garden, proper sprinkler head coverage is essential. Not only does it keep your plants and grass hydrated, but it also helps to conserve water use. Unfortunately, when sprinkler heads become blocked, the water output can reduce or even be completely cut off. The good news is that a clogged sprinkler head can often resolve by capping it. This blog post will discuss the proper steps to cap sprinkler heads to ensure that water is distributed evenly throughout your lawn or garden.

We’ll cover the different types of sprinkler heads and the best methods for removing and capping each one. We’ll also provide tips and tricks to help you troubleshoot any sprinkler head problems. 

Finally, we’ll discuss the potential benefits of capping your sprinkler heads. By the end of this post, you should know to cap your sprinkler head. Let’s start this off!

Here are the steps to follow;

  • Determine the type of sprinkler head
  • Check the manufacturer’s instructions.
  • Find the shut-off valve.
  • Turn off the water supply to the sprinklers.
  • Mark the location of each pipe and determine which one is the sprinkler supply.
  • Cut and cap all non-sprinkler supply pipes as necessary.
  • Install dry stops if necessary and mark their location on the dry stop valve locations you marked earlier.
  • Install a temporary hose extension on your dry stop valve and connect it to a bucket. This will allow you to drain the remaining water from the pipes.
  • Open your garden hose faucet and allow all remaining water in the system to drain out. Depending on how much water is left over, this should take anywhere from 10 minutes to an hour. When you’re sure there’s no more water left, please turn off your garden hose faucet and set it aside.
  • Remove any caps you’ve previously installed (if necessary). Then re-install them when you’re done with this process, so they’ll be in place when you’re ready to re-fill your irrigation system.

How To Cap Sprinkler Heads

Step 1: Determine the type of sprinkler head

The first step in capping off a sprinkler head is determining the type of one that needs capping. 

Generally, sprinkler heads are either screw-in or pop-up types. Screw-in sprinkler heads have a threaded base that does screw into the riser pipe and does typically find in older systems.

Determine the type of sprinkler head

Pop-up sprinkler heads are flush with the ground and pop up when the system does turn on. 

Determine the type of sprinkler head, look at the base of the skull, and see if it is threaded or flush with the ground. 

Once the type of sprinkler head is determined, you can proceed to the next step.

Step 2: Check the manufacturer’s instructions

The next step in capping sprinkler heads is to check the manufacturer’s instructions. 

Different types of sprinklers may require other capping techniques, so it’s important to double-check the manufacturer’s instructions to make sure you’re doing it correctly. 

Check the manufacturer's instructions

Instructions will usually include diagrams and pictures to make it easier to understand.

Additionally, many sprinkler manufacturers’ websites provide helpful videos for guidance. 

Once you’ve read through the instructions carefully, you’re ready to move on to the next step.

Step 3: Find the shut-off valve.

Once you have located your sprinkler head, you will need to find the shut-off valve for that zone. 

This valve is typically located near the sprinkler head but can sometimes find further away. 

Find the shut-off valve

If you cannot locate the valve, you should contact a professional for help. Once you have found the valve, please turn it off to stop the water flow to the sprinkler head.

It will allow you to safely cap the sprinkler head without spraying water.

Step 4: Turn off the water supply to the sprinklers

After you have disconnected the sprinkler heads, it’s time to turn off the water supply. It does a critical step to prevent any water from entering the sprinkler heads you are capping. 

Turn off the water supply to the sprinklers

First, locate the water shut-off valve and turn it to the off position.

If you need to know where the shut-off valve is, you can refer to the owner’s manual of your sprinkler system. Once the water supply is off, you can cap the sprinkler heads.

Step 5: Mark the location of each pipe and determine which one is a sprinkler supply.

Step 5 is to mark the location of each pipe and then determine which one is the sprinkler supply. 

It can do by using a simple plumbing snake and a piece of chalk, or you can use a pipe detector or a bright light to identify the pipes. 

Mark the location of each pipe and determine which one is a sprinkler supply.

Once you’ve marked the location of each pipe, you can use the snake or light to identify which pipe is the sprinkler supply. 

Once you have determined which pipe is the sprinkler supply, you can begin to cap the sprinkler heads.

Step 6: Cut and cap all non-sprinkler supply pipes as necessary

After you have cut off the sprinkler head, you need to cap the pipes that supply water to prevent water leaks.

Learn more: How To Fix Leakage Automatic.

Cut and cap all non-sprinkler supply pipes as necessary

You depend on your type of sprinkler system; the pipes usually lead to the sprinkler head, the backflow preventer, and the shut-off valve. 

To cap the lines, you will need a variety of caps, such as compression caps, threaded caps, or plastic plugs.

Make sure the cap’s size matches the pipe’s length and is tight enough to prevent water from leaking. 

Also, ensure the cap is secured with a wrench or pliers to ensure it does tightly seal.

Step 7: Install dry stops if necessary and mark their location on your dry stop valve locations you marked earlier.

Once all the sprinkler heads remove, it’s time to install the dry stops. 

Install dry stops if necessary and mark their location on your dry stop valve locations you marked earlier.

Dry stops are essential for preventing water from flowing through the pipes and out of the irrigation system when the system does turn off. 

To install them:

  • Start by locating the dry stop valve locations you marked earlier.
  • Attach the dry stop fittings to the valves, following the manufacturer’s instructions. It will ensure they are installed correctly and can stop water from flowing.
  • Mark the locations of the dry stops on your valve locations map so you will know where to look in the future if you need to access the valves.

Step 8: Install a temporary hose extension on your dry stop valve and connect it to a bucket.

It will allow you to drain the remaining water from the pipes.

After shutting off the water supply, the next step is to install a temporary hose extension on the dry stop valve and connect it to a bucket. 

Install a temporary hose extension on your dry stop valve and connect it to a bucket.

It will allow you to drain any remaining water from the pipes. Make sure the bucket is large enough to hold the amount of water you expect to be released. 

Additionally, ensure the hose extension is long enough to reach the bucket from your dry stop valve. 

Once you have done this, open the valve and let the water run into the bucket until all pipes drain.

Step 9: Open your garden hose faucet and allow all remaining water in the system to drain out.

Depending on how much water is left over, it should take anywhere from 10 minutes to an hour. 

When you’re sure there’s no more water left, please turn off your garden hose faucet and set it aside.

Open your garden hose faucet and allow all remaining water in the system to drain out

After turning off the main water shut-off valve and all the faucets in your home, it’s time to open your garden hose faucet and allow any remaining water to drain. 

The process can take 10 minutes to an hour, depending on how much water do leave in your system.

Once all the water does drain, please turn off your garden hose faucet and secure it tightly to avoid future leaks. Doing this will help avoid any costly damages caused by water that remains in the system.

Taking the time to complete this step will help ensure the overall efficiency of your plumbing system.

Step 10: Remove any caps you’ve previously installed (if necessary). 

Then re-install them when you do this process, so they’ll be in place when you’re ready to re-fill your irrigation system.

Remove any caps you've previously installed (if necessary).

It is important to remember to remove any caps from your irrigation system before you begin the process of cleaning it. 

It will make it easier for you to access the necessary cleaning components and prevent any damage to the caps during the process. 

After the cleaning process is complete, make sure to re-install the caps.

It will ensure that the system is properly sealed and ready to be filled with clean water when the time comes. Furthermore, by re-installing the caps, you can ensure that any debris or dirt that may have do introduce during the cleaning process will not contaminate the water.

Frequently Asked Questions

What is the Cost of the whole process?

Cost depends on the quality of the cap.

Typical range$131- $380
National Average$250
Lowest price$60
Highest price$700

These prices include replacing sprinkler heads, Labour fees, valve replacement, and head cost.

Is it OK to cap off a sprinkler head?

Yes, capping the sprinkler head is not bad, as it saves money and gallons of water from loss. It spends on you which method you use for capping off. There are two ways to put a cap on the head or the sprinkler, and the other is to put a cap on the sprinkler base. Both methods are safe. But if you are placing a cap on the sprinkler head, you must check its condition; if it’s broken, you must replace it.

How do you fix a sprinkler head?

By following the steps, you can fix the sprinkler heads:

Access the sprinkler assembly

  • Cut a 6-8 inches circle into the grass around the faulty sprinkler.
  • Remove the intact grass around the sprinkler using a hand trowel.

Replace the sprinkler head

Check the issues and fill the holes

  • Please turn on the sprinklers briefly to test them.
  • Flush the open water line to clear out the significant clogs.
  • Fill in the hole around the sprinkler
  • Replace the loose section of turf you cut earlier.

Expert Opinion

In conclusion, capping sprinkler heads is an easy way to protect the irrigation system in your garden. It’s a simple, cost-effective way to prevent water loss and damage to the system. Not only that, but it can also help you save money in the long run. With the right tools and simple steps, you can quickly cap off your sprinkler heads and keep your garden looking great.

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