Spa PH+ (Plus Gel) 900ml
1. Maintain proper daily levels:
Alkalinity: 100-150 ppm
2. If pH levels are below 7.2-7.8, add 20 mL of SPA PH+ per 1,000 L of spa water to increase pH by 0.4.
3. Spa must be in operation before SPA PH+.
4. Wait 15 minutes and retest pH.
5. Repeat operation until recommended levels are reached.