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Everything You Need to Know About a Pool Patch Kit

Do you have a pool that seems to be leaking? Have you noticed small tears or holes starting to appear in the vinyl lining of your swimming pool? Well, this could indicate that you need to invest in a quality pool patch kit. On this page, we are going to talk a little bit about when you should and shouldn’t be using a pool patch kit. We also want to give you detailed instructions on the exact process you need to use to fix your pool.

When do you need to use a pool patch kit?

If you have a hole in your vinyl pool lining, then it is important that you use a pool patch kit as soon as you possibly can. If you do not, then water will leak quite heavily through the whole which will cause a couple of issues (we will talk about that in a short while)

Do bear in mind that a pool patch kit should only really be used on small holes. While the best pool patch kits may be fairly substantial in size, you need to remember that you need to cover much more than just the hole to give it a proper seal. So, if the hole is too large, you won’t be able to cover it.

Remember; a pool patch kit is not going to be a long term solution. You will need to replace it eventually, so keep an eye on any holes that you have covered up.

When should you avoid using a pool patch kit?

So, when is a pool patch kit the wrong thing to use for your swimming pool? Well, there are a few situations where it may be better to completely replace the pool lining instead.

If your pool liner is more than 10-15-years old, then any holes that cause leakage are going to keep appearing. While you may be able to patch over a few holes and not see anything for a couple of months, you will eventually be using a pool patch kit so often that you may as well just replace the whole pool liner. It isn’t a problem that is going to stop, sadly.

You will also want to avoid using the pool patch kit if the hole is quite large, particularly if you were not able to spot the issue immediately. If a hole in the liner is large, then this could indicate a major problem. Once again, you may be able to cover it up for a short while, but you will only be able to cover it for a short period of time. Eventually, that hole is going to get a little bigger. Not only this, but it is going to be dreadfully difficult to seal up these bigger holes. Honestly, it just isn’t worth it.

Obviously, you should remember that the pool patch kit may hamper the aesthetics of your pool. This is not going to be an issue for most people. They are going to be able to put up with a bit of an odd-color in their pool if it saves them a few thousand dollars. However, once you have a few holes appear in your pool lining, you will really start to notice a change in the look of the pool. At that point, you may want to change the vinyl rather than patch any further.

Why you need to patch a hole quickly

If there is a leak in your pool then, obviously, you are going to have to deal with the fact that your pool is going to be losing water. It may not be a lot of water at once, but you will probably see water levels plummet by an inch or two over the course of a week. However, this isn’t the main issue despite being a hindrance having to add a bit of water to the pool on occasion.

The real issue comes from where the water is leaking into. For example; it could be going through the concrete, which could ruin the concrete, which can cause structural damage that is tough to fix. It could leak into the soil, which could cause plant damage. It may even cause structural damage to your home if enough water leaks out without a repair.

Perhaps the ‘main’ issue will come if you have a sand floor to your pool. The water will seep into the sand floor. This will create sinkholes. If that happens. Well, it is going to be quite dangerous. Not to mention the fact that the integrity of your pool is going to be completely compromised.

How to use a pool patch kit

Thankfully, repairing a swimming pool with a pool patch kit is something that you can easily do on your own. Although, do bear in mind that you will need to be underwater for a period of time, so make sure that you are capable of that. This is generally not a task that you will need to call the experts in for, although a few of them should be able to do it for a rather affordable cost.

As a note: it is important that you do not drain your pool if you have a hole in the pool lining. If you do this, then you run the risk of ruining the pool lining. This is because the hole, once the water is drained, will allow air to get in. This will cause the pool lining to become wrinkled and stretched. This is tough to repair. So, draining the water will turn this rather affordable repair job into one that could easily cost several thousand dollars.

Determine where the holes are

Chances are that you already have a fair idea about where the holes in the pool lining are actually located. However, do not assume that these are the only holes. They may be a few more in the pool. You may as well fix these at the same time. Actually, it is important that you fix these at the same time, otherwise, all your hard work is going to be in vain!

To find out where the holes are in the pool lining, you can purchase a testing kit from your local pool supplier. This will essentially be a colored dye. If you follow the instructions, the dye should flow towards any areas that have a leak. You may need to carry out one final test after you have sealed all known holes to make sure that there is no holes left to fill.

Determine the size of the hole

Once you know where the holes are, you need to get a rough idea of the size of them. You do not need to be 100% accurate on the size. But, you need to have a fair idea so that you are able to cut up your pool patches to the required size.

Cut up your pool patches

Pull the patches out of the repair kit and cut them up. You need the patch to be at least five times the size of the hole. This is the reason why we said that you should not be patching holes that are too large. No pool patch kit will repair them.

It is important that you cut up the pool patches to be circular in shape. They should not be a square. If they are, you will not get a good seal. This means that you will be replacing the patches sooner as opposed to later.

Add adhesive to the pool patch

Do not be afraid to go crazy here. You literally cannot add too much adhesive. It is important that every part of that patch is covered in adhesive. You will then need to fold the patch in half. The adhesive needs to be on the inside. It isn’t a ‘requirement’, but if you leave the adhesive exposed, it will be washed away as you head underwater.

Apply the patch

Now, you can head underwater. Put the patch on the hole. Make sure that it is centered. You then need to push down hard, taking great care not to move the patch around at the same time. Make sure the patch is completely flush. You will see adhesive come out the side of the patch. You can remove this with a tool, although take great care not to cause another split in the pool lining.


Now, you just need to wait for 24-hours for the pool patch to dry. Once the 24-hours are up, check that it is firmly in place. If it isn’t, then you may need to remove the adhesive and try again. Use more adhesive next time! If it still won’t stick, then you may have purchased a poor quality pool patch repair kit.


As you can see; using a pool patch kit to repair your pool isn’t that difficult. Just make sure that you spend your cash on a quality pool patch kit. It will provide a firmer grip on the pool vinyl. This means it will last a lot longer.

Posted in pool maintenance

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