Your Trusted Partner in Waterproofing

Often Neglected Waterproofing Requirement of Sunken Swimming Pools

Waterproofing a sunken swimming pool involves more than just tiling the surface — it requires a continuous and effective waterproofing system underneath the tiles and on the pool shell to resist constant water pressure and prevent leaks. Due to significant hydrostatic forces from water retained in a pool, high‑performance waterproof materials must be used on both walls and floors before tiles are installed. Without proper waterproofing, water can gradually seep through micro‑cracks, joints, or porous concrete, leading to structural damage, tile delamination, and expensive repairs over time. Good waterproofing also helps ensure the pool remains watertight under repeated filling and emptying cycles.

Often neglected waterproofing requirement of sunken swimming pool

The bungalow we visited has a swimming pool that really adds to the serenity of the house. Everything seemed to be so perfect only to be found that the tile grout could’t dry and cure at quite a number of places in the pool. This was due to groundwater that managed to seep through into the pool (rising dampness).

Apart from containing the water in the pool, waterproofing system is required at the exterior of the sunken swimming pool to prevent penetration of groundwater into the pool.

Generally, cementitious waterproofing is the most stable material when being submerged for long period.

Ready to Start Your Project?

Explore our range of waterproofing solutions designed for residential, commercial, and industrial applications.

Contact us today to get expert advice and the right products for your needs.

View Products

Protect Your Sunken Pool with Full Waterproofing

Ignoring the waterproofing requirements of a sunken swimming pool can lead to significant leakage, structural issues, and costly maintenance. A reliable waterproofing system applied before tiling helps create a durable water‑tight shell that resists hydrostatic pressure and water penetration. Correct waterproofing includes thorough surface preparation, membrane application across all pool walls and floors, and attention to joints and penetrations. Investing in complete pool waterproofing not only enhances durability but also reduces long‑term repair costs — ensuring your pool stays leak‑free and structurally sound for years.