Swimming pool water quality testing items mainly include: turbidity, pH value, urea, free residual chlorine compound, total number of residual chlorine bacteria, total E. coli population, ozone, water temperature, total soluble solids, oxygen Reduction potential ORP, cyanuric acid, trihalomethane THM.
Turbidity:
Turbidity is the clarity of the pool water. It is an indicator that reflects the physical properties of the pool water. It can visually reflect the content of suspended pollutant particles in the pool water.，
What if turbidity is too big?
① It is not easy to see the bottom of the pool clearly, which affects the feeling of the swimmer, and affects the sight of the lifeguards on the shore, which can easily cause accidents or delay first aid work.;
②The excessive amount of particulate matter may harm the swimmer's eyeballs;
③The water contains more various microorganisms, which may pass on diseases to others;
④A lot of disinfectants are required, and the sterilization efficiency is poor.
PH value:
The pH value is an indicator that reflects the pH of water. The over-acid and over-alkaline environment can easily cause irritation to the eyes and skin of the swimmer.The pH standard of swimming pool water stipulated by the state is between 6.5-8.5.
Urea:
Urea content is a unique standard in the water quality standards of swimming pools in our country.The urea in the pool water is mainly derived from human sweat, secretions and excrement. Excessive urea content indicates the degree of pollution of the pool water.
Free residual chlorine:
The regulation of free residual chlorine is to ensure that the swimming pool water has a continuous disinfection capacity, to inhibit the reproduction of the remaining bacteria in the water, to prevent cross-infection and to cope with the sudden increase in swimming load.
Compound residual chlorine:
Compound residual chlorine refers to the concentration of chlorine disinfectants present in the pool water in a compound state such as chlorine and ammonia. Compound residual chlorine is strongly irritating and can cause nasal mucositis and conjunctivitis.The concentration of residual chlorine is necessary.The ideal concentration should be half or less of the free residual chlorine.
Total number of bacteria:
The total number of bacteria is an indicator to measure the operating quality of the Swimming Pool Uv System . It is an effective method to understand whether the pool water is thoroughly disinfected, and it is also an important indicator of sterilization efficiency.
There is sufficient disinfectant margin in the pool water, the pH value is maintained within the prescribed limit, the cycle of the pool water is appropriate, and the swimming pool filtration equipment is often recoiled.
Wash and strengthen the hygiene management of swimming pools, and the total number of bacteria can be completely controlled.
Total E. coli group:
If the number of E. coli bacteria present in the swimming pool water is large, it means that the pool water has been contaminated with human feces.
ozone:
Ozone is highly oxidizing and is a very strong oxidizing agent and disinfectant. Ozone is a toxic gas. When the ozone in the indoor air has a certain content, it is easy for a swimmer to inhale the contents of the human body.The concentration limit of ozone in the air above the water surface of swimming pools stipulated by our country is 0.2mg/m3.
Water temperature:
The comfortable water temperature should be 23-30°C. The temperature of the pool water in different swimming pools is different. The water temperature is too low and too high. The human body can easily feel uncomfortable.
Total soluble solids:
The total soluble solids are indicators that guide whether the pool water needs to be diluted or updated. The effect of too many total soluble solids on the pool water:
①The pool water will become muddy;
②Chlorine failure;
③Will change the color of the pool water:
④The filtration cycle is shortened;
