Spa Alkalinity Minus

Spa Alkalinity Minus is an alkalinity reducer for spas. Its fast acting and odourless formula 100% soluble does not influence total dissolved solids like regular granular formulas.


  1. If levels are high, add 60ml of SPA ALKALINITY MINUS per 1000 L of spa water to decrease pH of 0.4 and alkalinity of 14 ppm.
  2. Spa must be in operation before adding SPA ALKALINITY MINUS
  3. Wait 15 minutes and retest pH and alkalinity
  4. Repeat operation until recommended levels are reached