RockBlocker – Protective Underlayment for Above-Ground and Semi-Inground Pools
The RockBlocker is a premium protective underlayment designed for above-ground and semi-inground pool installations, whether you are building a new pool or replacing an existing liner. Installed directly over the pool base and underneath the liner, RockBlocker forms a durable barrier that helps prevent sharp objects from damaging the liner as the pool settles over time.
Constructed from a high-strength, puncture-resistant fabric, RockBlocker blocks rocks, roots, and debris from pushing upward through the liner. Its industrial-grade material conforms smoothly to the pool bottom, providing consistent long-term protection and helping extend the lifespan of the liner. Whether you are using sand, stone dust, or another prepared pool base, RockBlocker delivers dependable defense and added peace of mind.
Key Features
- Designed for above-ground and semi-inground pools
- Installs between the pool base and the liner
- Helps prevent punctures from rocks, roots, and debris
- Ideal for new pool installations and liner replacements
- Industrial-grade, puncture-resistant fabric for long-lasting durability
- Conforms to the pool bottom for smooth and even protection
- Supports long-term liner performance as the pool settles naturally
- Reduces liner wear and helps prevent costly repairs
