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Hot Tub Shell Feels Gritty? How to Identify and Remove the Buildup
Your hot tub shell used to feel smooth. Now the seats, floor, or walls feel rough—almost like fine sandpaper. A gritty coating that stays attached to the shell often points to mineral scale. Loose particles that wipe away are more likely to be sediment or debris. Before adding chemicals or scrubbing the surface, work out…
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Hot Tub Water Smells Musty? What to Check and How to Fix It
Opening your hot tub cover should not remind you of a damp basement. If the water smells musty, stale, or earthy, start by checking the sanitizer level and the filter. A dirty cover can also contribute to the smell, while an odour that keeps returning may point to buildup inside the plumbing. Do not assume…
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How to Balance pH and Alkalinity in Pools and Hot Tubs
Maintaining proper pH and total alkalinity is an important part of keeping your pool or hot tub water comfortable, protecting equipment, and preventing water chemistry problems. However, these two measurements are closely connected, and adjusting one can affect the other. This is where many pool and hot tub owners become frustrated. They adjust their pH,…
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Slimy Hot Tub Water: Causes, Fixes, and How to Get Rid of It
Hot tub water should feel clean, not slippery, greasy, or slimy. If your hot tub water feels slimy, or you notice a slippery film on the seats, waterline, filter, or inside the plumbing, something may be wrong with your water chemistry or sanitation. The most common causes include biofilm, inadequate sanitizer levels, accumulated body oils,…
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Hot Tub Water Smells Bad: Causes, Fixes, and How to Get Rid of the Odor
Bad-smelling hot tub water is more than an unpleasant surprise when you lift the cover. A strong chlorine smell, musty odor, rotten egg smell, or sour water can indicate a water chemistry problem, contamination, or buildup inside the plumbing. The good news is that most hot tub odors have identifiable causes. The key is determining…
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White Flakes in Hot Tub Water: What Causes Them and How to Get Rid of Them
You open the hot tub cover and notice small white flakes floating in the water. Maybe they look like tiny pieces of paper. Maybe they crumble between your fingers. Or perhaps they seem slimy or soft. White flakes in hot tub water aren’t one specific problem. Several things can create similar-looking debris, and the correct…
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Why Is My Hot Tub Water Yellow or Brown?
Yellow or brown hot tub water can be alarming, especially when the water looked perfectly clear when you first filled the spa. But the color itself can provide an important troubleshooting clue. Yellow, tea-colored, orange, or brown water is often associated with metals such as iron or manganese, particularly when the discoloration appears shortly after…
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Why Is My Hot Tub Water Milky White? Causes and Fixes
Milky white hot tub water can make perfectly usable water look like something has gone seriously wrong. Sometimes the water really is cloudy because of poor filtration, water chemistry, contaminants, or a sanitizer problem. But before adding chemicals or changing the water, there’s one very simple test worth doing. Quick Check: Turn the Jets Off…
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Hot Tub Water Is Green: Causes, Troubleshooting, and How to Fix It
You open the hot tub cover and discover that the water has turned green. The first reaction is usually: Algae. And sometimes that’s correct—but not always. Green hot tub water can be caused by low sanitizer and organic growth, but dissolved metals such as copper or iron can also give the water a green tint.…
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Hot Tub Water Is Foamy: Causes, Troubleshooting, and How to Fix It
You turn on the hot tub jets and suddenly the surface looks like a bubble bath. A small amount of temporary bubbling from powerful jets isn’t necessarily a problem. But thick foam that builds on the surface and sticks around after the jets are turned off usually means something has been introduced into the water…