Skin irritation, cloudy water, corrosion of metal parts, deterioration of tile grout, and the presence of algae are all problems caused by an unbalanced pH.
A well-balanced pH, on the other hand, ensures better effectiveness of disinfectant products and optimal swimming comfort.
Possible causes of an incorrect pH
Why does pH increase?
- The use of alkaline products such as bleach (sodium hypochlorite), calcium hypochlorite, as well as the hydrogen produced by salt chlorination systems, tends to increase the pH of the water.
- When your pool is equipped with an overflow system, a waterfall, or even a counter-current swimming system, the turbulence created causes carbon dioxide to evaporate, which naturally leads to an increase in pH.
- In some regions, the source water itself can also tend to raise the pH.
Why does pH decrease?
- The use of acidic products: some stabilised chlorine products can lower the pH of the water.
- Acid rain, with a pH between 2.5 and 4, can also cause the pool water pH to drop.
- The pH can fluctuate significantly if your pool is equipped with a poorly calibrated automatic system (such as a dosing pump and/or regulation system).
- A total alkalinity level (TAC – mineral salts present in the water) that is too low will also result in a decrease in pH.
Treatment recommendations
with handle and dosing cap
➹ To increase the pool water pH:
Use HTH pH PLUS powder to raise the pH to between 7.0 and 7.4 (in front of the return jets, with the filtration system running).
➷ To lower the pool’s pH:
Lower the pH to 7.0 with HTH pH MOINS micro-balls (in front of the return jets, with the filtration system running) and maintain this level for several days.
In a nutshell
It is strongly recommended to monitor and properly balance your pool water pH on a regular basis, as a well-adjusted pH enhances the effectiveness of disinfectants.
Each level on the pH scale is ten times higher than the previous one.
For example, water with a pH of 6 is ten times more acidic than water with a pH of 7.
