A Practical Example of Using a 60 Mil PVC Membrane to Restore a Swimming Pool

Check out a vivid example of such a restoration:

Imagine your favorite backyard pool, now leaking and covered in cracks from years of wear and tear. Water bills are skyrocketing, and the thought of a full demolition seems like a budget-busting nightmare. But what if you could breathe new life into it without tearing everything apart? Meet the 60 mil reinforced PVC membrane—a revolutionary solution for pool restorations. This thick and durable membrane seals leaks, dramatically improves appearance, and gives your pool a new lease on life for a fraction of the cost of rebuilding. In this article, we’ll break down a real example, explain why it’s the smartest solution for cracked pools, and highlight its advantages, especially for scenic pools on slopes.

In pools, especially older ones built from concrete and lined with plaster or tile, multiple cracks often appear over time. These cracks, caused by soil settling, freeze-thaw cycles, or even minor earthquakes, lead to constant water loss, algae growth, and structural issues. For pools located on slopes (such as overflow ones that offer stunning horizon views), the risks are heightened. Landslides or soil shifts can worsen crack formation, turning a fairy-tale view into a maintenance migraine. Traditional repairs might involve a complete overhaul, which could cost several hundred thousand dollars depending on the pool’s size, along with weeks—if not months—of downtime. But there’s a better way: installing a 60 mil (1.5 mm) reinforced PVC membrane directly onto the existing surface. This method restores waterproofing without demolishing the structure, making it the most rational solution for leaking and cracked pools. It minimizes costs and fully restores functionality—no more wasted water or safety threats.

Consider the case of an overflow pool in hilly terrain. This magnificent large-scale pool, built on a steep slope with panoramic views, developed dozens of hairline cracks in its gunite shell due to minor landslides. Water was leaking at a high rate, creating risks of further erosion and landslides.

After draining the water, the pool’s condition stabilized, but it required immediate repair. Instead of earthworks and demolishing the existing structure, the contractor team chose the Cefil 60 mil pool liner from the Victoria collection in Bianco color. It completely transformed the old pool, giving it an elegant look.

The process began with thorough cleaning and filling large cracks to create a smooth surface. Then, jets, drains, and lighting fixtures were replaced with ones compatible with the PVC membrane; a laminated profile was installed around the pool’s perimeter to secure the membrane.

It should be noted that the spa was not in the best condition either. It was also riddled with cracks on all sides.

Before installing the PVC membrane in the pool, a geotextile underlay was laid. In addition to softness, it also improves thermal insulation, preventing rapid water cooling. Strips of thick PVC membrane, pre-cut to the pool’s dimensions, were welded on-site with overlapping double seams using specialized equipment, creating reliable waterproof joints. At the water overflow edge of the pool, the membrane strips were welded butt-to-butt. A special PVC underlay was used for this.

The entire job took just 15 days, without using heavy machinery or hauling away debris. After installing the PVC membrane, the pool was refilled with water, and the result exceeded all expectations.

For old pools suffering from leaks, a 60 mil thick reinforced PVC membrane is the rational solution because it addresses the core issue—waterproofing—at minimal cost. This method creates a continuous barrier that seals every crack, restoring full usability. No demolition means no need for permits for major construction, less environmental impact, and no downtime for your pool. It’s especially ideal for budget-conscious homeowners who want a quick and reliable fix that pays for itself through savings on water and electricity. Plus, the aesthetic upgrade is a nice bonus. You can choose from a whole range of colors (deep blue, sandy beige, etc.) and textures, including realistic imitations of tile mosaics or natural stone like marble or granite.

Overflow or infinity pools on slopes are the best candidates for this repair. Their elevated designs offer breathtaking horizon views, but unstable terrain increases the risk of cracks from ground movement or heavy rains. Thick PVC membranes flex with minor shifts, preventing new cracks and sealing old ones. In landslide-prone areas like California, this resilience is crucial—traditional rigid surfaces like plaster crack under stress, while elastic thick PVC membranes lack this drawback. Projects like those featured in Pool Magazine show how these membranes have saved elite hillside pools, preserving their “endless” appearance without costly reinforcement.

What makes a 60 mil reinforced PVC membrane stand out? This ultra-durable material—three times thicker than standard vinyl liners—has a polyester mesh core providing unmatched strength. Here are its key advantages:

• Superior Durability and Puncture Resistance: At 60 mil thick, the membrane is virtually puncture-proof against toys, pet claws, or debris. It withstands impacts that could tear thinner liners, with tear strength 3–5 times higher.
• Long Lifespan: 25–30 years or more, even under heavy use, with a 10-year warranty. It lasts 10–15 years longer than plaster or tile, reducing replacement frequency.
• Complete Waterproofing: Creates a reliable barrier that prevents leaks from cracks and corrosion, saving thousands of dollars annually on water expenses.
• Flexibility Against Movement: Doesn’t crack from freeze-thaw cycles, ground shifts, or landslides—ideal for sloped sites.
• Easy, Non-Demolition Installation: Installed over existing surfaces with minimal prep. No heavy equipment required.
• Low Maintenance: Smooth, non-porous surface resists algae formation, staining, and chemical effects. Tolerates a wide pH range (7.2–7.8) and requires less cleaning and shocking.
• Aesthetic Versatility: Custom colors and textures mimic luxury materials, complementing any design.
• Safety and Comfort: Soft underfoot, prevents scratches. Anti-slip surface reduces fall risks.
• Cost-Effectiveness: Lower initial and lifetime costs—up to 40% savings compared to repeated traditional repairs.
• Eco-Friendly: Reduces chemical use and water consumption.