When to close
Close the pool when water temperature stays low and leaves begin to fall. Closing too early can allow algae, and closing too late risks freeze damage.
Watch the forecast for hard freezes.
Balance the water
Clean the pool, then balance pH, alkalinity and calcium and add winter treatments. Balanced water protects surfaces over the cold months.
Remove debris before closing.
Lower the level and blow the lines
Water in pipes can freeze and crack them. Lower the water level as needed, blow out lines with air and install plugs. Different pools need different steps.
Skimmer and return lines need special care.
Protect equipment
Drain pumps, filters, heaters and chlorinators, and store removable parts. Add antifreeze only where recommended. Freeze protection controls can protect running systems.
Document what you did.
Cover the pool
Fit a winter or safety cover that matches the pool. Keep it clear of heavy debris and water. Check it during winter.
Automatic covers need different care.
When to ask for help
If you are unsure about plumbing, heaters or automation, a professional closing is a good investment. We offer closing services and written checklists.
Good closing makes spring easier.
Balance the water, protect the plumbing and equipment and keep a cover in good shape.
