Test your water's total alkalinity every week with Baqua Spa Test Strips and adjust accordingly.
Add appropriate amount of Baqua Spa Total Alkalinity Increaser 2 1/2 ounces per 500 galloons of water to raise 20 ppm) to raise the spa water total alkalinity within the 80-120 ppm range.
Circulate spa water at high speed for a minimum of 30 minutes.