1.5kg Relax Spa pH Minus

1.5kg Relax Spa pH Minus pH Minus is used to reduce the pH of your spa water Maintaining the correct pH in your spa water is essential. Failure to do so will result in bather discomfort and damage to your spa Ideal conditions are between 7.2 and 7.6 Test the pH of your spa water at least twice per week and before every use