HTH™ Spa Alkalinity Increaser

No matter which sanitizing system you choose, keeping the water balanced is essential to yor enjoyment of the spa. Water is balanced when pH, total alkalinity and calcium hardness are all within the proper range. Problems arise when any of these factors are too high or low. Unbalanced water can become corrosive or cause the formation of scale deposits.

Corrosive water also attacks the integrity of metal components; pitting, etching, and staining them. Scale formation causes decreased heater efficiency, cloudy wate, surface staining, or short filter cycling. Any of these conditions can cause problems for the spa, and irritations, especially of the eyes and skin.

Total alkalinity is the amount of "buffer" presnet in water. These buffers prevent drastic changes in pH, called "pH bounce." The proper total alkalinity range for spa water is 80-120 ppm (parts per million). It is important to check your Total Alkalinity first in the balance process, adjust if necessary and retest.