How To Install Inground Pool Liner?

If you’re looking to give your inground pool a facelift, installing a new liner can be a great way to update its appearance. While it may seem like a daunting task, with the right tools and preparation, you can install a new inground pool liner yourself. Here are the steps you should follow to install an inground pool liner.

How To Install Inground Pool Liner?

Step 1: Measure The Pool

Before you begin the installation process, you will need to measure your pool to ensure that you purchase the correct size liner. Measure the length and width of the pool, as well as the depth at the deep end and shallow end.

Step 2: Drain The Pool

Once you have purchased the correct size liner, you will need to drain the pool. Make sure to follow proper drainage procedures and take the necessary precautions to prevent any accidents or damage to the pool.

Step 3: Remove The Old Liner

Remove the old liner from the pool and dispose of it properly. Take note of any damage or issues with the pool walls or floor that may need to be addressed before installing the new liner.

Step 4: Prepare The Pool

Clean the pool walls and floor thoroughly and remove any debris or dirt. Make sure the pool is completely dry before proceeding to the next step.

Step 5: Install The Liner

Spread the new liner out on the pool deck and carefully position it in the pool. Make sure it is centered and smooth out any wrinkles or air pockets. Start at the shallow end and gradually work your way to the deep end, smoothing out the liner as you go.

Step 6: Secure The Liner

Once the liner is in place, attach it to the pool walls using coping strips or other securing methods. Make sure the liner is taut and properly aligned before securing it in place.

Step 7: Refill The Pool

Fill the pool with water and monitor the installation to ensure that the liner remains properly aligned and taut as the pool fills.

Step 8: Finish The Installation

Once the pool is full, you can finish the installation by installing the skimmer, return jets, and other pool accessories. Follow the manufacturer’s instructions carefully and make sure all components are properly secured.

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Are Pool Liners Easy To Install?

Installing a pool liner in an above-ground pool can seem like a major chore. However, broken down into smaller steps, it’s something you can tackle in a day. To make this project easier and more efficient, work with a partner. Note: make sure to buy the correct liner size for your pool.

Do You Have To Put Sand Under The Pool Liner?

You never want to install your above-ground pool on your natural ground. Rocks, twigs, and other debris can tear your liner over time. Sand helps level your pool, adds cushion, and even acts as a weed barrier so plants don’t grow into or puncture your liner.

What Is Under An Inground Pool Liner?

Underneath the liner is a sand or cementitious floor, troweled into place. The floor sidewalls come up to meet the walls, which are commonly 42” x 8 ft panels made of galvanized steel or thermoplastic. These walls are supported from behind so that they won’t bow out against the weight of the water.

Do You Have To Drain The Pool To Replace The Liner?

You will need to drain your pool before you begin installing a new liner. Since pools have tens of thousands of gallons of water, you should check with your municipality, so you dispose of the pool water the proper way.


Installing an inground pool liner is a challenging but rewarding project that can update the appearance of your pool and extend its lifespan. While it may take some time and effort, following these steps can help you achieve a successful installation and enjoy your newly updated pool. If you’re not comfortable with the installation process, it may be best to hire a professional to ensure the job is done correctly.


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