hot tub leak sealer

While dealing with a leaky hot tub isn’t something that you should commonly come across, things happen. Instead of paying a professional to come out and patch it up, you may be able to use a simple leak sealer.

Using a leak sealer is a much easier and far more cost-effective solution when it comes to fixing a leak. 

Dive in with us as we discuss the top hot tub leaker sealers on the market, helping you to buy the right product for your repair needs.

Top 3 Hot Tub Leak Sealers

If you’re unable to find where the leak in a hot tub is coming from, then the AquaDoc Hot Tub Leak Repair can help you to find and fix it.

The beauty of AquaDoc Hot Tub Leak Repair is that it can stop a leak in as little as 24-48 hours.

Stopping a leak will be faster and easier than ever before. 

This leak sealer works incredibly fast.

Plus, you never even have to drain the water from a hot tub to get started.

You don’t need any sealant tools when using this special formula, as it is able to seal up minor cracks in a hot tub all on its own.

Marlig Fix-A-Leak may just be one of the most popular products for those looking to fix a leak.

This concentrated formula has been in use since the 1980s and can help you fix the leak on the shell, floor, or walls of the hot tub.

It works really well and is even safe for your plumbing system.

If you have holes or leaks that are up to 1/8″ in diameter, Marlig Fix-A-Leak can get the job done, forming a seal that is durable and long-lasting.

The formula is super easy to apply and can cure and harden in as little as 48 hours.

Another great leak sealer for those people who are looking to repair minor cracks and leaks is the Spa Choice Seal-A-Leak solution.

You can add this solution to your hot tub skimming component if you are unsure where the leak location is and it will stop a leak anywhere from 24-48 hours depending on the size and the location.

One thing we love about Spa Choice is that the company put together a very easy-to-understand user guide that you can download to determine whether or not the product will work for your particular leak, giving you all of the necessary product information and technical specifications that you could need.

Hot Tub Leak Sealer Buying Guide

If you’re looking to fix a leak in your hot tub or pool, then a leak sealant is your best bet. The reason that people choose to use leak sealants is that it can help them avoid potentially expensive repair costs. Sealants can be used for a number of different materials in different situations, all without damaging the equipment and components found within a hot tub, including the chlorine salt generators, filters, heaters, or pumps.

To use a hot tub sealant to fix a leak, you will mix it with water. As the water stars seeping out of the leakage area, the sealant will begin forming a coating around the outside area. The sealant will eventually dry up, creating a seal that is long-lasting.

When Can I Use A Hot Tub Sealant To Fix A Leak?

Of course, leak sealants aren’t able to fix every problem that you have with your hot tub. However, when it comes to fixing small leaks that pop up in hot tubs and pools, these products do an excellent job.

Sealants are suitable for repairs:

  • Regardless of the type of hot tub or pool that you have
  • Regardless of if the leak is present in the fittings, skimmer, suction lines, return lines, housing, floor, or walls.
  • If the water loss within your hot tub is under 3mm each day or if the water loss within your pool is less than 50mm each day.
  • Hot tubs that have a salt level less than or equal to 3000ppm.

On the other hand, a sealant is not a great choice if:

  • You want to seal a pond that has fish or other living organisms inside of it
  • If the water level loss within your hot tub is greater than 3mm each day or if the water level loss within your pool is greater than 50mm each day.

If you are unsure whether the leak sealant you have will be able to get rid of the leak that is in your hot tub or pool, it is worth giving it a try first to see. Even trying it out could help you avoid a repair that is potentially expensive.

How To Use a Leak Sealer To Fix a Leak

If you’re looking to fix a leak but you are unsure how to use your leak sealant product, here is a small step-by-step guide to help you make the most out of your hot tub repairs.

Identify Water Level Loss

While you don’t necessarily need to know where the water level loss is coming from, you do need to identify that your hot tub is losing water.

To do this, you can put a piece of scotch tape on the top of the water level and let it sit there for 24-48 hours.

Once the 24-48 hours is up, you can see if the water level has gone down. If so, you likely have a leak.

Our “how to find a leak in a hot tub” article may be helpful for those who want to take it a step further.

Determine How Much Sealant You Will Need

For every 250 gallons of water in your hot tub, you will need about 4 oz of leak sealant.

An average 6-person hot tub holds around 350 gallons of water, meaning you will need to add at least 5.6 ounces of leak sealant to fix a leak. On the other hand, if you have a smaller two-person hot tub that only has around 200 gallons inside, you should only need to use around 3.2 oz of leak sealant.

Remove Filtering Devices and Cartridges

To prevent your hot tub filtering devices from sealing, you need to remove them before you attempt to fix aleak. Even when the filter tank is empty, you should continue circulating water through it.

Turn Your Hot Tub Pump On

Add your concentrate directly to your water. Leak sealant is made to work no matter what the temperature of the water is inside of your hot tub. However, if you want the best and quickest results possible, we recommend keeping your water temperature well above 70 degrees during the application process.

In our experience, leak sealant tends to work best if the water temperature in hot tubs is greater than 100 degrees Fahrenheit.

Keep Your Hot Tub Water Circulating

Because the hot tub leak sealant is very heavy, it will end up sinking to the bottom of the hot tub. For this reason, you need to keep your water circulating for around 6-8 hours after adding your leak sealant.

You may also consider using a soft broom to help the leak sealant stop from sinking to the bottom of the hot tub.

You want to keep recirculating the hot tub water until the leak has stopped. Once the leak has stopped, you can turn off the system.

Check The Level Of Your Water After 24 Hours

After a full day after adding the leak sealant to your hot tub, you should check your hot tub to see if the level of the water has gone down. If the leak has stopped completely, you can continue on to the next step. If you notice that the leak has slowed down, though it has not come to a complete, repeat the entire process again.

In this case, you may choose to increase the amount of the hot tub leak sealant product that you are using. However, if you go through several attempts to fix a leak in your hot tub and nothing is changing, you may need to get in contact with a hot tub professional.

Reinstall Your Filter

Once your hot tub leak is gone, you can replace the filter. You do not need to drain the hot tub water, as your hot tub leak sealant will not affect the chemistry in your hot tub. Any excess leak sealant product will run through the filter to be eliminated.

Reinstall your filter and allow the filter to do its work. Do make a note that the hot tub filter you use to clean out any of the excess leak sealant product should be cleaned out periodically over the next month until the leak sealant product is completely removed from the filter.

Never allow the hot tub filter cartridge to dry out until you have completely cleaned it. 

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