How to Remove and Reinstall a Pool Liner (J-Hook Liner)

Replacing your pool liner is a great way to extend the life of your above-ground pool and refresh its appearance. If you’re tackling a J-hook liner replacement yourself, this guide from Discount Pools Direct will walk you through every step to get the job done right, no professional installer required.

Before You Start:

Choose a sunny day with temperatures above 75°F. Warm weather softens the liner, making it more pliable and much easier to install.

Step-by-Step J-Hook Liner Replacement Guide

1. Prep the Liner

Lay your new J-hook liner flat in direct sunlight. This will help remove folds and make the liner more pliable, making installation easier.

2. Drain the Pool

Completely drain all water from the pool. Do not attempt to remove the liner with water still inside—it will be extremely heavy and difficult to handle.

3. Remove the Old Liner

• Start by cutting the bottom floor section of the liner.
• Cut the liner into smaller, manageable pieces so you can easily lift them over the wall.
• While removing the liner, take off all top caps and top seats from your pool’s frame.

4. Clean the Pool Base

With the old liner out:

• Clean the bottom of the pool thoroughly, removing algae, debris, and leftover liner material.
• Replace old pool coving if needed.
• Add fresh, level sand to create a smooth, cushioned base.

5. Prep the Pool Structure

• Remove screws from all top plates, but leave one rear screw on each upright. This allows the top plate to lift slightly during liner installation.
• Remove the top rims and discard any leftover liner clinging to the walls.

6. Level the Sand and Prevent Pests

• Smooth out your new sand layer.
• Sprinkle ant killer around the perimeter to prevent ant damage under the liner.

7. Vacuum Setup

• Place a shop vac hose in the return opening of the pool wall.
• Seal all other openings with duct tape to create suction.

8. Install the New Liner

• Unfold and position the new liner in the pool.
• Make sure the wall seam is opposite the skimmer and return opening.
• Align the floor seams so they run straight across the pool.

9. Attach the Liner

• Hook the liner over the wall using the J-hook design.
• As you go, reinstall top rims behind the lifted top plates and secure with screws.
• Push the liner bottom outward toward the walls to remove major wrinkles.

10. Vacuum Air Out

• Turn on the shop vac to remove air between the liner and pool wall.
• This will tighten and position the liner evenly against the walls.

11. Start Filling

• Once the liner is snug, begin filling the pool with water.
• As the water rises, smooth out any remaining wrinkles at the bottom.
• Reinstall all top plates and top seats as the pool continues to fill.

12. Let It Fill

Filling a large above-ground pool can take several days. Monitor progress and make adjustments as needed.

Final Tip

Take your time! Rushing through this process can lead to uneven liner placement or premature wear. With careful prep and patience, you’ll enjoy a smooth, professional-looking result that keeps your pool protected and ready for summer fun.

Purchase Your Next Pool Liner at Discount Pools Direct

Wrap up your pool upgrade with ease by shopping our extensive selection of J-hook pool liners at Discount Pools Direct. We offer a complete selection of above-ground pools, durable pool liners, and must-have accessories to help you create the perfect backyard setup. Need help getting started? Call us today at 1-866-974-1164. We proudly serve customers nationwide, from Florida and Georgie to Texas, Pennsylvania, and beyond, and offer flexible financing options to fit your budget. Make your backyard the ultimate summer destination with help from Discount Pools Direct!