
pH Minus lowers the pH value of spa water. The pH value is the basis for any pH adjustment. To maintain the optimal pH level, it is necessary to measure and, if needed, adjust it 1 to 2 times a week (for public pools, we recommend measuring 3 times a day). Measurement is carried out using a test kit. To enhance the effectiveness of all spa care products, the value should be between 7.0 and 7.6.
At least once a week, check the pH value of the water in your spa using test strips. If necessary, lower the pH to 7.0 - 7.6. Add the required amount of pH Minus directly to the spa while the filtration system is running.
To lower the pH by 0.1, 1 kg of pH Minus is needed per 100 m3 of water.
Important recommendations: Add pH Minus gradually near the outlet nozzle or at several points in the pool, directly into the spa while the filtration system is running. It is advisable to dissolve the product in a container of water beforehand.
Do not add before the filter or before the heat exchanger.
![]() | pH-Minus lowers the pH value of pool water |
![]() | For water disinfection to be as effective as possible, the pH value should be between 7.0 and 7.4 |
![]() | 1.5 kg |