Description
Leisure Time Calcium Booster is a calcium hardness increaser formulated for spas and hot tubs. It raises the calcium hardness level of your spa water into the safe range, protecting against the two problems that low-calcium water causes: foaming and equipment corrosion. The fast-dissolving formula mixes in quickly with the jets running, and a measured dose moves hardness predictably toward the 150–400 ppm target range.
Calcium hardness is the most overlooked of the four core water-balance readings — most owners watch sanitizer and pH closely while ignoring hardness entirely. That’s a mistake. Water that’s too soft (low in calcium) is chemically “hungry” — it tries to take calcium from wherever it can find it, which means leaching it out of your spa’s equipment. Soft water etches plaster and acrylic surfaces, corrodes metal heater elements and jet hardware, and is one of the leading causes of persistent foaming that no amount of defoamer can permanently fix. Soft fill water is especially common for owners using water softeners, well water, or municipal supplies in soft-water regions.
Calcium Booster corrects the problem at its source. By raising calcium hardness into the proper range, the water becomes chemically “satisfied” — it stops pulling calcium from your equipment, foaming subsides, and the corrosive etching stops. Maintaining hardness in the target range is one of the simplest ways to extend the working life of the most expensive components in your spa, and a single 32 oz bottle treats a standard residential spa for an extended period.
Pro Tip: If your spa foams persistently and defoamer only fixes it temporarily, test your calcium hardness before reaching for more Foam Down. Low calcium (below 150 ppm) is one of the most common root causes of chronic foaming — and no amount of foam suppressant will permanently fix a foam problem that’s actually a hardness problem. Raising calcium into the 150–250 ppm range with Calcium Booster often eliminates recurring foam entirely, addressing the cause instead of chasing the symptom.
Brand
Leisure Time®
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