Hot tub water-care guides
Short, practical answers for the problems every hot tub runs into. Each one leads with the fix, cites the chemistry, and links to the calculator that sizes the dose for your gallons.
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How to lower pH in a hot tub
High pH dulls sanitizer and scales surfaces. How much acid to add, and why alkalinity comes first.
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How to raise pH in a hot tub
Low pH stings eyes and corrodes metal. Sizing soda ash, and the alkalinity link.
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How to lower alkalinity in a hot tub
High alkalinity locks pH high and clouds water. The acid-and-aerate method that works.
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How to raise alkalinity in a hot tub
Low alkalinity lets pH bounce. How much baking soda your gallons need.
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How to lower chlorine in a hot tub
Too much chlorine to soak. How to bring it down safely, fast and slow.
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Cloudy hot tub water: causes and fixes
The five usual causes of cloudy hot tub water, ranked, and the fix for each.
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Foamy hot tub water: why and how to fix it
Why hot tub water foams, the quick knockdown, and the real fix that lasts.
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How to clean a hot tub filter
Rinse, soak, and replace: keeping the cartridge that keeps your water clear.
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How to drain and refill a hot tub
When to change the water, and a clean refill that balances fast.
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How to winterize a hot tub
Closing a tub for winter without a cracked pipe come spring.
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Hot tub water change schedule
How often to drain, and the simple rule that sets the interval.
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What temperature should a hot tub be?
A safe, comfortable set point, and who should go cooler.
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How long does a hot tub take to heat up?
What sets heat-up time, and the numbers for plug-in and wired tubs.
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Saltwater hot tubs vs chlorine and bromine
A saltwater tub is not chlorine-free. How salt cells work, and the honest pros and cons.
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Hot tub maintenance checklist
The simple rhythm: what to do after each soak, weekly, monthly, and at each water change.
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Hot tub jets not working: the fixes
Weak or dead jets are usually an air lock or low water, not a broken pump. The fixes in order.