Description
SpaGuard Rapid-Dissolve pH Decreaser Tabs lower high pH in spa and hot tub water the easy way — a clean, dry tablet instead of a liquid acid or loose powder. They’re a compressed version of SpaGuard’s traditional pH Decreaser (sodium bisulfate), engineered into a tab that dissolves by erosion in just a few minutes in the filter compartment. Each tab lowers pH by roughly 0.1–0.2 units, which makes dialing in your water precise and predictable.
pH is the most active number in spa care — it tends to rise day by day as bathers, products, and aeration affect the water, so a pH-decreasing product is a genuine must-have. When pH climbs too high, the water turns cloudy, scale starts to form, and your sanitizer becomes less effective. These tabs bring pH back into the comfortable range, protecting your spa and swim-spa equipment and keeping the water comfortable for soaking — all without handling messy liquid acid.
For owners who adjust pH often, the tab format is especially convenient: precise, mess-free, and as simple as dropping the right number of tabs into the filter compartment.
Pro Tip: A dry tablet is safer and easier to handle than liquid muriatic-type acids — no splashing, no fumes, no measuring a corrosive liquid. Because each tab moves pH a controlled 0.1–0.2 units, you can sneak up on your target a tab at a time instead of overshooting.
Brand
SpaGuard®
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