Empty swimming pool shell coated with cementitious waterproofing at a Bali villa

Once a client asked me why their infinity pool was losing 3–5cm of water per week even when the weather was calm and evaporation couldn't account for it. The answer, confirmed after a dye test, was a hairline crack at the pool floor-to-wall junction that had been there since construction but widened gradually over two years of thermal cycling. Pools are the most demanding waterproofing application in Bali: constant hydrostatic pressure from the inside, thermal movement with every hot day, chemical exposure from chlorine, and structural movement from the villa's foundation settling into Bali's varied soil. Pool waterproofing failures are normal — they need planned maintenance and periodic remediation, not surprised reaction.

Pool Waterproofing Services

New Pool Waterproofing

Correct waterproofing system selection for new Bali pools. We specify negative-side (interior) systems — crystalline or polyurethane — appropriate for the pool type and finish. Infinity pools require additional attention at the overflow channel, where the water surface transitions to the view edge. This junction experiences constant wetting and drying cycles and needs a flexible membrane that handles both movement and chemical exposure.

Pool Leak Detection

Dye testing to confirm active leaks at specific points. Pressure testing of inlet and outlet pipework to separate plumbing leaks from shell leaks. Evaporation comparison testing (bucket test) to determine whether water loss exceeds evaporation. We confirm the leak type and location before recommending repair — pool shell leaks and plumbing leaks have completely different repair approaches.

Pool Shell Repair & Re-waterproofing

Crack injection with polyurethane foam for active structural cracks. Crack repair and crystalline treatment for dormant cracks. Full shell re-waterproofing when the existing system has failed systemically — this involves draining the pool, cleaning the shell, treating all cracks and penetrations, and applying a new system appropriate for the existing finish material.

Tile & Finish Remediation

Pool tiles are installed over the waterproofing membrane — when the membrane fails and is repaired, tile reinstallation is often required. We coordinate waterproofing and tile work as a single scope to ensure the repaired membrane system is correctly protected by the final finish layer.

Pool Losing Water in Bali?

Tell us the pool size, approximate water loss rate, and age of the pool. We can often narrow down the likely cause before visiting and plan the most efficient diagnosis approach.