Raises total alkalinity and buffers against pH bounce. 2 pounds 
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Used to increase the calcium hardness level of spa water to help prevent etching or staining. It can also correct too-soft water from home water softening systems. 32 ounces 
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Sodium based granules which lower pH and alkalinity in spa water. Does not contain Muriatic Acid. 1.5 pounds 
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A granulated powder that raises the pH of water. 2 pounds 
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