Is your pool liner leaking?

Let's find the source

Common signs your pool is leaking

A slow drop in water level is easy to ignore. Top it up and move on.

But if your pool keeps losing water, there is usually a reason. A leaking liner is one of the most common issues we see, and it often starts small before turning into a bigger problem.

Here is how to tell if your liner is leaking, what causes it, and what to do next.

  • 1 WATER LEVEL CHANGES
    When the water level in your pool is dropping at a faster rate than would be expected from evaporation, that's a telltale sign the pool is leaking. A commonly reported "normal" evaporation rate is 1/4" a day, but evaporation rates vary based on a number of factors, including wind, air and water temperature, and humidity. If your pool is uncovered and in direct sunlight all day, your evaporation rate will be higher than a shaded or covered pool. You'll also lose more water if you backwash your filter, have active, splashy swimmers, and keep the water hot. However, it's safe to say if you're losing 1/2" to 1" of water in your pool every day, you've got a leak.
  • 2 GROUND CHANGES AROUND THE POOL
    Excess water from a leaking pool disturbs the surrounding ground and can cause cracks in a concrete pool deck and movement in a stone or brick pool deck. Cracks or gaps may become noticeable as the pool deck settles farther into the softened ground. Water movement underground can cause erosion and start to shift and sink landscaping.
  • 3 WET SPOTS
    Mushy spots, puddles and pools of water around the pool when it hasn't rained may indicate a pool leak. Uneven grass growth around the pool area is another sign.
  • 4 HIGHER BILLS
    Automatic fill devices might be hiding leaks by keeping the pool topped up. If you notice these devices running constantly or an increase in your water and electricity bills, it’s time to start looking for a leak.
  • 5 BUBBLES OR SOIL IN THE POOL
    Plumbing leaks may cause soil or air to be pulled into your pool via the return lines. You can also diagnose plumbing leaks if you hear mysterious gurgling sounds.
  • 6 ALGAE GROWTH
    Constantly topping up a pool that leaks with new, untreated water will throw off your water chemistry and may lead to algae growth. Finding and repairing the leak may be the solution instead of constantly treating your water.

Is your pool liner the problem?

Any spot that comes in regular contact with water is a potential source of a pool leak. The liner is the obvious choice, but lights, underground lines, backwash lines, underground connections and fittings, in-pool steps, faceplates and drains are all common sources of pool leaks.

Talk to our pool expert and get a clear answer before it gets worse

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