Opening vs closing
Use the tabs above. Opening focuses on cover-off, circulation, test, and clear water. Closing focuses on clean, chemistry, equipment, and cover.
Interactive opening and winterizing checklists for residential pools. Tick boxes save in your browser — pair with Care guides for full detail.
Estimates only — always retest water and follow product labels. Not professional advice.
Seasonal steps by climate and pool type. Progress saves in this browser.
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Gear that may help

Best routine monthly oxidation shock
HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula
$45.80 · Amazon

Emergency algae kill
POOLACC 68% Cal-Hypo Granular Sanitizer - 12 x 1 Pound
$54.99 · Amazon
Named in our guides when relevant. We may earn on Amazon links at no extra cost. Disclosure.
Use the tabs above. Opening focuses on cover-off, circulation, test, and clear water. Closing focuses on clean, chemistry, equipment, and cover.
No. Use the checklist for order; open/winterize guides for climate, chemistry, and equipment detail.
Line blowouts and equipment storage may need a pro. Don’t force a DIY freeze plan from a generic list alone.