Spring: inspect and re-establish the baseline
Inspect the cover, water level, visible plumbing, equipment, baskets, seals, and safety items. Restore circulation according to the equipment instructions, clean the pool, test the water, and record the filter’s clean-pressure baseline. Pools that operate year-round still benefit from a spring equipment and record review.
Summer: respond to heat and swimmer demand
Hot weather, strong sunlight, dust, storms, and frequent swimming can increase sanitizer demand and debris. Test more often when conditions change, empty baskets before flow is restricted, brush low-circulation areas, and monitor water level and equipment behavior.
Fall: control debris and prepare the decision
Falling leaves and changing temperatures alter the workload. Keep baskets and the pool surface clear, watch filter pressure and return flow, review chemical inventory, and decide whether the pool will remain open, operate on a reduced schedule, or be closed according to local conditions.
Winter: protect the system appropriate to your climate
Cold-climate winterization and warm-climate year-round operation require very different procedures. Follow local professional guidance and manufacturer instructions for freeze protection, water level, covers, equipment, and circulation. Do not copy a closing procedure intended for another climate.
Use conditions, not just the date
A seasonal schedule is a planning framework. Weather, water temperature, storms, landscaping, swimmer use, and local restrictions may move tasks earlier or later. Inspect the actual pool before following the calendar.