Alkalinity Increaser

The carbonates in water help stabilize pH. ​ But both the heat and aeration of spas drive out carbon dioxide. ​ Consequently, pH in spas tends to rise. If pH is outside the recommended range it can cause problems:

• Swimmer Discomfort - Bloodshot eyes and irritated skin can be signs of a high or a low pH.
• Equipment Deterioration​ - High pH forces minerals into solids and forms scale. ​ A low pH will corrode equipment and the spa interior.
• Chemical Inefficiency​ - Chlorine (and to a lesser extent bromine) residuals become less active at a high pH and overly active at a low pH. ​ Although bromine operates in a wider pH range than chlorine, it’s still a problem if pH is excessively high or low.
• Water Clarity​ - High pH can make the water cloudy.

Since spas are smaller, holding fewer gallons of water, pH changes caused by people and chemical treatments are more dramatic. ​ So to create a spa environment that is truly safe and relaxing, you have to control these pH fluctuations through having the proper total alkalinity level.

• Raises alkalinity level to protect spa water from sudden changes in pH
• Helps prevent staining, corrosion and pH bounce