On Guard Total A Increaser for Spas

On Guard Total A Increaser On Guard Total A Increaser raises the total alkalinity in swimming pool water.  This product boosts the effectiveness of your pool water disinfectant, such as chlorine, as well as aids in the prevention of pool scale formation, metal corrosion, and etching of pool surfaces. Total Alkalinity Increaser helps maintain pool PH level and eliminates PH "bounce". Test for Total Alkalinity with a reliable pool test kit.  The desired range for total alkalinity is as follows: Fiberglass Pools: 70-100 PPM (parts per million) Marcite, Painted, Tile or Exposed Aggregate Pools: 80-120 PPM Vinyl Pools: 120-140 PPM If the total alkalinity is less than the desired range, add total alkalinity increaser directly to the pool water, while the pump is in operation, in accordance with the table on the bottle.