Pool Leak Detection Guide

DIY Leak Detection

Are you worried there might be a leak in your pool? We’ve got a simple procedure you can try yourself before calling in a technician to determine if your pool is actually leaking.

Generally, it is considered common for a pool to lose ~6mm of water over 24 hours due to evaporation. If more water is lost, a leak is very likely. If you suspect that there is, in fact, a leak in your pool, it’s in your best interest to analyze whether or not you’re losing more than 6 mm of water. If a significant amount is being lost, the state of your pool can be affected negatively. You may be forced to spend money on restoring the chemical balance and in severe cases; you may even be required to repair/replace your pool equipment to restore your pool to a functional state.

A quick and effective way to determine whether or not your pool may be losing water can be done by performing a bucket test. This is a simple that can easily be done by the owner of the pool without further tools or preparations. The pool must be tested during a period of non-use.

The procedure is as follows:

  • Place a bucket on a step of the pool, and fill it with water to the exact level of the surrounding pool water.
  • Mark the outside and inside of the bucket with a permanent marker at the water level.
  • Allow the bucket to remain in place for 24 hours, with the circulation system active.
  • If the water level in the bucket and the water level of the pool remain the same, there is no leak.
  • If the water level in the bucket is above the water level in the pool, there is a leak. Repeat the test with the circulation system turned off.
  • If the two water levels remain even, then there is most likely a leak in the circulation system.
  • If the pool level drops even with the circulation off, the leak is most likely present in the pool structure.
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Easy steps to determine leak in your pool

If you have determined that the swim pool’s water loss is due to a leak, here are some additional steps you can follow to narrow down the problem:

  • Inspect around the filter pad for obvious leaks.
  • Look for damp spots or drips. A steady drip can result in a lot of water loss over time.
  • Check if your pool leaks more with the filtration system running vs. not running

If none of the above seems to affect water loss, you’ll need to call a pool company that can perform more sophisticated testing to locate leaks in a pool and takes the necessary measures.