How to Adjust Swimming Pool Water Levels

Adjusting swimming pool water levels is necessary for a safe pool experience.
Adjusting swimming pool water levels is necessary for a safe pool experience. (Image: Jupiterimages/BananaStock/Getty Images)

Over time, swimming pool water levels change due to evaporation and even strong winds and thunderstorms. Whether you need to increase pool water levels or decrease the amount of water, adjusting swimming pool water levels is done through several steps. Take note of any local swimming pool laws when it comes to removing water, as some cities require swimming pool water to be disposed of through a special service.

Things You'll Need

  • Bucket
  • Garden hose
  • Pool chemicals

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Removing Water

Turn off the chlorinated water system, or stop adding chlorine to the swimming pool for at least one week. Chlorine evaporates from sitting water within this time frame, thus allowing you to safely remove water from the pool.

Scoop up water in a large plastic bucket. This allows you to have full control over the amount of water being removed from the swimming pool. Since the chlorine is removed from the water, you may safely dispose of it through a sanitary sewer, or discharge the water on your property. Make sure the water does not form puddles where mosquitoes can breed, and also ensure the water does not drain into streams or ponds.

Add chlorine back to the swimming pool after the ideal water level is achieved.

Adding Water

Connect a garden hose to the water spout, which will typically be found on the side or rear of your home.

Turn on the water, and allow the swimming pool to fill to its desired level. A good stopping point is when the water is 1 foot (12 inches) from the top of the pool wall.

Turn off the garden hose. Remove the hose from the swimming pool, and add the appropriate amount of chemicals to the swimming pool for sanitary purposes. Pool water test kits are available at swimming pool supply stores to determine the amount of chemicals needing to be added to the pool water.


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