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Six Signs of Swimming Pool Leaks

 It is a privilege to be able to enjoy a swimming pool in Singapore with your family. However, maintaining the pool properly requires some work. A part of pool maintenance involves making sure the pool is properly waterproofed. Both residential and commercial swimming pools can become damaged over time for various reasons. Good swimming pool waterproofing will reduce the need to spend thousands of dollars on expensive and time-consuming repairs in the future.

Types of Swimming Pool Leaks

    • Structure-related leaks are caused by leaks within the structure itself. In cases of concrete pools, this is when the swimming pool’s waterproofing membrane or shell has cracked.
    • When the pool’s plumbing has holes or damage, water leaks from those points, resulting in plumbing leaks. Most fittings are surrounded by plaster, which, if done incorrectly, can leak over time.
    •  Leaks around pipe or fitting penetrations occur when water leaks out of the pool’s concrete form.

6 Signs of Swimming Pool Leaks

There are different signs that a swimming pool is damaged and has sprung a leak. Some signs are more obvious than others and may require a professional waterproofing contractor to inspect. Take note of these 6 signs when inspecting your swimming pool for leaks.

  1. Swimming Pool Liner Damage Tears may form on the vinyl pool liner and cause water to leak due to deterioration over time. UV radiation and pool chemicals are common causes for pool liner damage. Cracked liners become brittle and allow pool water to leak out.

  2. Wet Patches and Ground Damage Water may leak into the surrounding groundwater, resulting in visible damp patches, damp soil, ground sinking or soil erosion. Water movement underground may cause soil erosion and result in the landscaping in the surrounding area to shift and sink.

  3. Equipment Damage The leak may also come from damaged pool equipment. Check the pool’s pump, heater, pipe valve or filter to inspect for signs of visible leakage or corrosion.

  4. Water level change Significant changes in the water level is a clear sign that the pool is leaking. One water leakage identification method is by measuring the amount of water the pool loses in 24 hours. An exposed swimming pool loses approximately 3mm – 7mm of water a day due to evaporation. If you notice your swimming pool is losing more than this amount a day, it might indicate a leak.

  5. Cracks In Surrounding Tiles Due to the presence of excess water from a swimming pool leak, the surrounding ground area may shift and become unsettled. This shifting can cause tiles in the surrounding area to move and crack. Cracks may occur in the bond beam as the pool settles further into the softened ground.

  6. Unusually High Water Bill Certain swimming pool systems use automatic fill devices that keep the pool filled. If you notice the autofill device constantly running or water bills are strangely higher than average, it would pay to investigate if there is a leak in the pool.

Waterproofing Products For Fixing Swimming Pool Leaks

  1. Cementitious Coatings These are breathable, seamless waterproofing coatings that help to prevent water infiltration and resist mould & mildew buildup. The anti-mould properties are especially important for swimming pools as people use them on a regular basis. The cementitious coatings may be applied via a brush, trowel or sprayed onto the surface. The benefit of this method is that it is easy to apply and can last a long time.

  2. Epoxy Resin Products Epoxy resin grouts may be injected into cracks found in the swimming pool membrane. The benefit of this material is that it is elastic and easy to apply, the epoxy resin grout will contract and expand to fill the crack, sealing off any leaks.

  3. Pool Paints Painting your pool is a quick and affordable way to make the interior surface look new and clean. Pools generally have to be repainted every 2-4 years depending on multiple factors. The three main types of paints used are epoxy, premium acrylic and water-based acrylic. The type of paint depends on the material of the pool plaster.

    1. Membranes for swimming pools There are three types of pool membranes: fiberglass, vinyl liner, and concrete (also known as gunite). Pool membranes made of fibreglass are low-maintenance, durable, and affordable. The disadvantage of fiberglass membranes are its higher installation costs and it’s inflexibility when it comes to customisation. Concrete pools are durable and highly customisable but requires more maintenance and potential waterproofing work due to its porous nature. Vinyl liner pools are affordable to install and are highly customizable, however, they require constant liner replacements over the span of ten years.