Pool Care in Cooler Weather

When the weather cools, the heat finally starts to decrease which lowers the ability of algae to proliferate. But, cooler temperatures don’t mean the pool can be neglected, especially in the Phoenix area. Here are some considerations for pool care in colder weather:


Reminder: before a storm, shut the power off to the pool. Please turn it back on afterward.


During winter rains, the water quality in your pool can be affected, not only by the lower pH of rainwater but also by the particulates (mainly bacteria and dirt) carried into the pool by the rain and wind.

If we have exceptionally heavy rain, the chemicals in the pool can become diluted by the additional water. When you go out to turn the power back on, check the basket, skim the leaves, and make a point of testing the chlorine and pH of the water.

Also, sometimes people find toads in their pools after a heavy rain, usually after monsoons. Be careful handling these, as they can be poisonous, and don’t permit pets to play with them.

Water level

Many people have an autofill, which is great when it works. The temptation might be to ignore the pool in winter since it isn’t swimming season, but check the pool level regularly and test the water periodically.


The answer to how often you should vacuum requires some judgment. It depends on many factors, including the quality of your pool cover, if you even have a pool cover, how much debris gets into the pool, if you have an automatic sweeper, and more. People who have a lot of trees (or a neighbor with one deciduous tree!) will need to vacuum more often. If you have trouble keeping the pool clean and chemicals adjusted, one thing you can do is to hire a pool pro to take care of your pool in the off months. That way it won’t get neglected, even when you aren’t using it or thinking about it.


Periodically review your pool chemicals and discard any old ones. Keep the others stored away from the elements, particularly water, and especially away from children.

Pool heater

Many residents use a pool heater in the winter months so they can use their pool year round. There are solar heaters, gas heaters, and heat pumps to help keep your pool temperature comfortable.

Whether you choose to enjoy your pool in the winter months or not, keeping your pool clean will assure that it will be ready at the beginning of the swimming season.

If you need pool maintenance for your Phoenix, Arizona pool or spa, call us here at Serenity Pools. Our services include new installation set-up, professional maintenance of pools and spas, water features, and fountains. Call today! 480-370-0579.