SpaGuard Rapid-Dissolve Alkalinity Increaser Tabs are effervescent tablets designed to quickly raise the total alkalinity in spa and hot tub water, preventing pH bounce and equipment corrosion. You apply them by placing tabs in the filter well with the circulation pump and jets running, and they disperse treatments throughout the water for easy, single-dose application.
SpaGuard RAPID DISSOLVE Alkalinity Increaser Tabs (1.25 LB)
- Control pH bounce by quickly raising total alkalinity
- Helps protect equipment from corrosion
- 2 tabs per 250 gallons – 1000 liters as needed
- Raises total alkalinity by 30 ppm
Sodium Bicarbonate