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@ Renke
2025-05-28 02:26:55The PH value of a swimming pool is one of the important indicators for measuring the quality of swimming pool water. Its importance is mainly reflected in the following aspects:
Affecting human comfort The pH of water that the human body is most adapted to is neutral. Inappropriate pH of swimming pool water will irritate human skin, eyes and mucous membranes, causing discomfort. For example, when the pH value is high or low, it may irritate the swimmer's skin, eyes, etc., causing discomfort such as itchy skin, red and swollen eyes, and sticky hair, affecting the swimmer's physical health and swimming experience.
Affecting the disinfection effect of swimming pools
Affecting the activity of chlorine disinfectants
Swimming pools are usually disinfected with chlorine-containing disinfectants. Different pH values will cause differences in the activity and disinfection ability of chlorine. When the pH value in swimming pool water is greater than 8.0, the activity of chlorine disinfectants in water will be significantly reduced, that is, the disinfection ability will be reduced, which will affect the algae removal and sterilization effects, resulting in the proliferation of green algae in swimming pool water. When the pH value is less than 7.0, the activity of the disinfectant in the swimming pool will be relatively high, the residual chlorine in the swimming pool will dissipate faster, and the disinfection durability of the swimming pool disinfectant will be greatly weakened. Under the condition of pH about 7.5, there is a relatively good disinfection effect and the duration of the drug effect is relatively long.Influence on the existence form of residual chlorine Depending on the pH value, free chlorine may be chlorine gas (Cl₂), chlorophyll acid (HClO) or hypocrite ion (ClO⁻) dissolved in water. The disinfection effect of HClO is about 100 times stronger than that of ClO⁻. When the pH value is about 7.5, both chlorophyll acid and hypocrite ion exist, and the proportion is roughly equal, which can ensure a better disinfection effect.
Corrosion to swimming pool facilities Pool water acidity or alkalinity will have a corrosive effect on swimming pool equipment. If the water is acidic, it will also corrode the accessories of the suction machine and affect the normal use of the equipment. If the pH value is unbalanced for a long time, the chemical disinfectants in the swimming pool will corrode the pool structure and swimming pool equipment, which will not only affect the appearance of the pool structure and equipment, but also shorten the service life of the swimming pool and increase the maintenance cost of the swimming pool in the later stage.
Impact on the containment of pool water The pH value in the swimming pool will change due to many external factors, such as rain, the use of swimming pool disinfectants, and alkaline chemicals. Maintaining a suitable pH value can make the pool water have better containment, more stably cope with the influence of these external factors, and maintain the relative stability of water quality.
In summary, the pH value of the swimming pool is of great significance to ensure the health and comfort of swimmers, ensure the disinfection effect, protect swimming pool facilities, and maintain the stability of pool water quality.