Pool Maintenance Schedule: What & When

The schedule at a glance

The frequencies refer to the summer season. In a heatwave, with many swimmers, wind or trees near the water, do them more often; with a cover and light use, less often.

Frequency	Task	Why
Daily	Skim the surface with the net, glance at the water level and clarity, cover at night	Leaves come out easily before they sink; the cover keeps the heat in and limits evaporation
2–3 times a week	Test pH and free chlorine, empty the skimmer baskets	pH 7.2–7.6 and chlorine 1–3 mg/l keep the water safe and the liner protected
Weekly	Brush the walls, vacuum the floor, clean the pump strainer and the waterline, check the pressure gauge	Algae start in spots with little circulation; waterline grime hardens if left
When the pressure rises	Backwash and rinse the filter	A dirty filter means less flow and cloudy water
Monthly	Test alkalinity, hardness and stabilizer; check ladder screws and gaskets	They change slowly, but they affect all the chemistry
Each season	Opening in spring, closing in autumn, general check of the liner and equipment	Small problems are spotted before they become big ones
Every few years	Change the filter sand	Sand wears and filters less well

For the cleaning tasks and their correct order, see our guide to pool cleaning; for testing, see how to test your water.

How care changes through the year

Spring

The winter cover comes off, the water level goes up, the equipment starts and a shock chlorination is done. Details in opening the pool. It is also the best season for a filter sand change, when one is due.

Summer

Peak season. Circulation runs for more hours, testing becomes more frequent, and in a heatwave it is daily. After a party or a day with lots of children in the water, check the chlorine that same evening.

Autumn

Leaves fall and the skimmer baskets need emptying almost every day. A cover makes a big difference. Once the water cools, it is time for winterizing.

Winter

Check the cover after wind and rain, and keep an eye on the water level and the plant room. If you chose active winterizing, test the water every one to two weeks.

How to keep to the schedule effortlessly

A notebook or notes on your phone with test results and backwash dates. That way trends show up, for example a pH that keeps rising.
A mark on the pressure gauge showing the clean-filter pressure, so you know at a glance when a backwash is needed.
Tools and chemicals kept together, in a dry, ventilated place, out of reach of children.
The table printed and posted in the plant room, so whoever looks after the pool while you are away follows the same schedule.

Signs that something is going wrong

A steady schedule makes you notice changes immediately. If you see any of the following, don't wait for the next scheduled task:

the pressure rises much faster than usual after cleaning the filter,
chlorine drops from one day to the next although the weather and number of swimmers haven't changed,
the water level falls faster than summer evaporation,
the water turns dull despite correct test results.

However regular your schedule, two rules never change: never put chlorine granules directly on the liner, and never drain the pool completely.

Questions

How much time a week does pool maintenance take?

For a family pool with a cover and a timer, usually a few minutes a day and about an hour a week for brushing, vacuuming and testing. A robotic cleaner cuts the time even further.

Do I need to test the water every day?

Not necessarily. Two or three tests a week are enough most of the time; test daily in a heatwave, after lots of swimmers or after a storm.

Pool maintenance calendar: from the daily check to seasonal tasks