When to Use Pond Liner Sealant on an Existing Liner

If you have a pond, you know that proper maintenance and care is important. If you find a leak in your pond and you have a liner, you’ll likely wonder if you should use a pond liner sealant to fix it. There are different ways to repair your existing liner, so you should know when to use which method for the best results.

Find Out if You Have a Leak

The first thing you must do is figure out if you have a leaking pond liner or a different issue. You likely have a leak if you lose two to three inches of water every week. If that’s the case, you need to find where the leak is coming from.

To do this, turn off your auto-fill devices and let the pond sit for 12 hours. If you’re still losing water at the end of that time, let it keep draining. Watch to see where the water level settles. When the pond stops leaking, you know you’re looking for a leak where the water level ends up.

Once this part is done, it’s time to find out how to repair the leak.

When to Use the Pond Liner Sealant

Your pond liner sealant is a great option for small leaks to your pond’s liner. The sealant is applied over the affected area to create a waterproof seal over the crack in the liner.

Choose a pond liner sealant like Pond Pro 2000 because it doesn’t require a primer, and it can be applied over the affected area or your entire liner if you want extra protection against future leaks.

If you have an EPDM liner, apply a “flash coat” to the liner first. This is a very thin sealant coating; use no more than 0.75 gallons per 100 square feet to ensure the proper thickness. Once this is done, let it cure for 24 hours before applying the main coat.

After the flash coat is cured, you can apply the full coat. Once finished, the sealant will be waterproof in two to three hours and fully cured after 24 hours in temperatures above 55 degrees. Using this pond liner sealant will let you not have to worry about future repairs, with a three-year guarantee on proper application.

leaking pond liner

When to Use Pond Liner Joining Tape

Sometimes, you’ll need to use joining tape in addition to Pond Pro 2000. If you need to join seams together, apply butyl tape over the seam. This can help bring two separate pieces of your pond liner together. Once the tape is set, cover it with the pond liner sealant, following the instructions above.

When to Replace Your Pond Liner

Repairs are usually the first line of defense against pond liner leaks. However, there comes a time when the liner’s lifespan is over, and it needs to be replaced. If this is the case for your pond, drain it completely to remove the old liner. Then, place the new liner and put the pond back together.

Replacing a pond liner is often a lot of work. Since they aren’t super resilient to changes in weather and temperature, many people choose to apply Pond Pro 2000 over their new liner. This addition will allow your new EPDM pond liner to have a longer lifespan than the previous one.

Wrapping It Up

Using a pond liner sealant should be the first line of defense for small liner leaks. Using Pond Pro 2000 will help make sure you don’t have to repair the leak again once it’s cured. Using a pond liner sealant will help you get more life out of your liner and enjoy your pond for years to come.

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