
Pool & Spa Care Made Simple
Warm Water. Happier Winters.
Cold-weather pool care and warm, comfortable hot-tub guidance for a safer, easier winter season.

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Get practical advice, step-by-step guides and clear explanations for your pool or spa.


Hot Tub & Spa Care
Hot tub and spa care guides covering routine maintenance, winter care, water changes, sanitizer checks, foam,…
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Water Chemistry
Understand pool water chemistry with practical guides to chlorine, pH, alkalinity, CYA, calcium hardness, testing and…
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Troubleshooting
Troubleshoot common pool and spa problems including cloudy water, leaks, low chlorine, filter pressure, foam and…
Explore →Useful calculators
Tools for Smarter Maintenance
Quick calculators and planning tools for common pool and spa care tasks.
Pool Volume Calculator
Estimate pool volume from dimensions and common pool shapes.
Open calculatorChlorine / Shock Calculator
Plan chlorine adjustments from pool volume, current level and target.
Open calculatorHot Tub Dose Calculator
Calculate spa-sized treatment amounts using your water volume.
Open calculatorSalt Calculator
Estimate salt additions from pool volume, current salinity and target.
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Troubleshooting
Winter Care Hub
Find clear paths through cloudy water, green water, hot-tub foam and common equipment issues.
Explore troubleshooting →Learn. Test. Balance.
Understand Your Water
Understand pH, alkalinity, chlorine, bromine, sanitizers and water testing with clear context and product-aware cautions.
Explore water chemistry →New here?
Beginner Guides
Pool Closing Chemicals: What You Actually Need Before Winter
Hot Tub Water Care in Winter: How to Keep Water Clear and Safe
Fresh from PoolSpaKit
Latest Guides
Recent practical guides for pool and spa owners.
Pool Green After Winter: Why It Happened and What to Do First When You Open It
Opened your pool and it's green? Don't drain it. Here's why it happened over winter and the safe order to…
Pool Opening Chemicals: What You Need in Spring
The pool opening chemicals you need in spring: chlorine, shock, algaecide and balancers. What each does, target ranges, and the…
Is It Safe to Use a Hot Tub in Cold Weather?
Cold-weather hot tub use calls for extra precautions. Learn water-temperature limits, winter soak guidance, icy-deck safety and what to do…
How to Store a Robotic Pool Cleaner for Winter
How to store a robotic pool cleaner for winter: drain it, clean the filter, coil the cable kink-free and keep…
