Yankee Pool Pillow 18 Ft Round Pool Liner Pad — Puncture-Resistant Underpad for Above-Ground Pools, Cushioned Protection

The Yankee Pool Liner Pad is an 18-foot round, puncture-resistant geotextile underlay that shields above-ground pool liners from sharp objects, roots, and wear to extend liner life.

Installing an underpad beneath your soft- or hard-wall above-ground pool creates a protective barrier between the liner and whatever lies beneath—soil, stones, or decking. This 18 ft round pad from Yankee Pool Pillow is designed to reduce punctures, soften the pool floor, and slow erosion, making setup easier and helping your liner perform better season after season.

How does this pad prevent liner damage?

The pad uses a durable geotextile fabric that stands up to mechanical stress and resists tears from sharp gravel, buried roots, and garden debris. Rather than relying on a thin sheet, the material provides a sacrificial layer so the liner bears less abrasion and points of pressure.

• Puncture-resistant synthetic fabric that reduces holes and rips
• Stops contact with stones, glass, and buried objects
• Helps block root punctures and insect-related damage

Will it make my pool floor more comfortable?

Yes—placed directly under the liner, the pad adds cushioning that minimizes unevenness felt through the pool floor. Even after you clear and level the site, the extra layer smooths minor bumps and creates a softer underfoot surface for swimmers.

• Provides a gentle cushion under the liner for improved comfort
• Reduces the feeling of small depressions or hard spots
• Helps maintain a more uniform pool bottom over time

How easy is the Yankee pad to install and fit my pool?

Installation is straightforward: spread the round pad on leveled ground, trim if necessary, then set your pool liner and walls on top. For hard-wall pools, place coves first, add the pad, then position the liner; for inflatable soft walls, simply lay the pad and center the pool.

• Trim-to-fit design for a custom edge fit around obstacles
• Straightforward placement—no adhesive or special tools needed
• Works with inflatable and rigid above-ground pool types

Does the pad affect water temperature or drainage?

The fabric delivers slight insulation that can help moderate water temperature near the floor while also acting as a barrier against ground seepage. Its presence encourages more consistent drainage around the base and reduces rainwater pooling that could accelerate soil erosion under the pool.

• Offers mild insulating effect to stabilize bottom temperatures
• Minimizes ground seepage that leads to undermining or sinking
• Helps channel surface runoff away from the pool base

Who is this for: Pool owners who want a low-effort, high-impact way to protect and prolong their above-ground pool liner. If you install or store a soft-wall or hard-wall round 18 ft pool, or if your site has visible stones, roots, or minor unevenness, this pad is a sensible investment to reduce repairs, improve comfort, and make seasonal setup simpler.