Best Hot Tub Leak Sealer

If you own a hot tub, sooner or later, you will face the problem that most hot tub owners face. A hot tub can often develop a leak, and it can create an issue as the water leaks out quickly and you are not able to enjoy soaking in the hot tub. A hot tub leak sealer can solve the problem of minor hot tub leaks, and these are also easy to apply.

If there is a significant leak, then you should consider calling a technician that can take a look at the leak and fix it. For minor leaks, there are different types of hot tub leak sealer solutions available online, and you can easily choose the one that suits your requirements.

Comparison of Best Hot Tub Leak Sealer

Serial NoProduct NameManufacturerTypeEditor's RatingWhere to Buy?
1Plast-aid Multipurpose Repair Plastic - 6oz Kit Pool and Spa RepairPlast-aidSolution4.6Check on Amazon
2Poolmaster 30280 Pool Patch Kit Wet for Swimming Pools, 2 ozPoolmmasterPatch4Check on Amazon
3Spa Bond Hot Tub & Pool Leak Seal Patch Kit - Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, AcrylicSpabondPatch4.4Check on Amazon

How to Use a Hot Tub Leak Sealer

There are two basic types of hot tub leak sealers, either a patch or a solution. Here are the steps you should follow when using either type of leak sealer.

1) Patch – Empty the tub as having water in the tub can make it challenging to repair the leak. Once the hot tub is empty, let it dry thoroughly before applying the patch. You can also use a dry cloth to rub the area where the leak is located to soak any residual moisture from the place. You can also use a marker to highlight the exact location of the leak. Apply the patch on the location of the leak and let it dry for at least 24 hours before refilling the hot tub.

2) Solution – For hot tub leak sealers that are in the form of silicate solution, pour the solution in the hot tub after removing the filters from the hot tub. Run the spa jets for four hours but keep the ozonator, blower and spa heater off. The idea is to let the solution circulate through the hot tub so that it can coagulate around the area where the leak is located. When you see that the leakage has stopped, run the pump on low for 20 hours till the silicate solution cures completely.

Reviews of Best Hot Tub Leak Sealer

1) Plast-aid Multipurpose Repair Plastic – 6oz Kit Pool and Spa Repair

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The Plast-aid powder and liquid is perfect for sealing any kind of visible leaks in your acrylic or PVC hot tub. The mixture of the powder and liquid also bonds rough surfaces such as wood and stone, which makes it useful for repairing leaks in all kinds of hot tubs. Simply locate the leak, prepare a mixture as per instructions given on the package, and apply on the location of the leak. You can also color the resulting spot to make sure it looks the same as the rest of your hot tub. Before use, test a drop of the liquid to check if the material of the tub becomes sticky on application of the solution. All it takes is 15 minutes to repair any kind of leak in your hot tub.

Key Features

  1. Works with acrylic, PVC, ABS, wood, stone, and concrete
  2. Easy to use by simply mixing the solution and the powder
  3. Sets up in as quick as 15 minutes
  4. The repaired spot can be colored and tooled as per your requirements

2) Poolmaster 30280 Pool Patch Kit Wet for Swimming Pools, 2 oz

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This patch kit from Poolmaster is perfect for sealing any kind of pool leaks. The best part is that this kit can be used for sealing leaks underwater as well as in dry conditions. The kit is easy to apply as all you have to do is locate the leak and apply the patch material on it. The patch bonds to the material quickly with the fast drying adhesive and you don’t even need to drain the hot tub if the leak is small in size.

Key Features

  1. Useful for dry as well as underwater patching
  2. The adhesive dries quickly
  3. Easy to use kit
  4. Ideal for all hot tub sizes

3) Spa Bond Hot Tub & Pool Leak Seal Patch Kit – Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, Acrylic

View on Amazon

The Spa Bond leak sealing patch is a multi-purpose solution to all your pool leaks. The adhesive is easy to apply, and the patch can be directly pasted on to the location where the water is leaking. The clear patches can be simply peeled off and stuck to repair the leak. There are four patches in the pack so that you can take care of any kind of leak with ease. If you own a hot tub, this kind of patch kit is a must to repair minor leaks in the materials.

Key Features

  1. Easy to apply
  2. Four patches in two sizes
  3. Adhesion increases with time
  4. Conforms to the shape of the leak for a better seal


If you own a hot tub, having a good quality hot tub leak sealer is a must because leaks can happen any time. Often when hot tubs are used after a season in storage, leaks develop and if you can quickly repair a leak, you can ensure there is no further damage to your hot tub. The hot tub leak sealer patches are easy to apply, and all you have to do is clean the surface and apply the patch. For better results, let the patch dry and hold before filling the water in the hot tub. With a high-quality leak sealer, you can enjoy your hot tub for many more years to come.

We hope this article was helpful in giving you an insight into various leak sealing products available in the market. If you have any questions or queries, feel free to leave your thoughts in the comment section, and our team will answer at the earliest.


Hi, I'm Richard the Chief Editor at I worked in the Hot tub maintenance field for a few years, and I thought to share my knowledge about Hot tub on our blog. My team and I share useful information related to Hot Tubs.

Click Here to Leave a Comment Below 3 comments
Tim - November 18, 2019

Your recommendations on this “Best Hot Tub Leak Sealer” web page appear to be only Patch, not Solution, recommendations. For those with possible leaks in the interior plumbing lines, what is your recommendation for Solution fixes?

    Richard - November 20, 2019

    First recommendation is Solution type itself. Please check again.

owlswan free eagle - July 24, 2020

What is the solution if one wanted to cover the entire interior surface? Paint the entire inside surface with epoxy?


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