Quick answer: In summer the filtration should run longer than outside the season. As a guide, consider the pool volume, pump output, water temperature, bathing load and water quality.
There is no single number that fits every pool. The same filtration time can be enough for a small covered pool and completely insufficient for a large pool in the heat with heavy bathing use.
What determines filtration time
The goal is for a sufficient volume of water to pass through the filter and for no areas of weak circulation to form in the pool.
- pool volume
- actual pump flow rate
- water temperature
- number of bathers
- amount of debris from the garden
- condition of the filter media
A practical rule
In hot weather and with frequent bathing, it’s better to filter in several blocks throughout the day. A short evening run is often not enough.
- check the pressure on the filter
- regularly clean the baskets and pre-filter
- extend filtration time if the water turns cloudy
- filter more intensively after a storm or a busy day
When to look for a technical problem
If the water isn’t clear even with long filtration, the problem may lie in the flow rate, clogged media, air in the system or badly set valves.
Where to go next
This text is original editorial content by Spa Pool News. It serves as a practical guide for pool, hot tub and wellness owners; always follow the manufacturer’s instructions and the recommendations of your service company for specific equipment.
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