- 25 LB Total Alkalinity Increaser for Swimming Pools
- Stabilizes PH levels & 100% soluble
- Prevents eye & skin irritation if kept above 80 PPM
- 100% Sodium hydrogen carbonate
- Satisfaction Guarantee
Alkalinity levels must be kept in check in order to control your pH levels. It is impossible to keep pH in the proper range if alkalinity is not within the desired range. Also, when total alkalinity drops below 80 ppm, equipment corrosion, plaster, etching and eye irritation can occur. 100% soluble powder.