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Swimming pool cleaning and maintenance
Published:
2020/09/26
Swimming pool equipment maintenance
1. After each use of the swimming pool, check the firmness of the gratings on the water inlet, return water inlet, drain outlet, and overflow water trough; check the integrity of the pool body cladding; check the integrity of the facilities in the toilet, locker room, and shower room.
2. Check the water pump noise, water pump oil level, and inlet and outlet pipe pressure daily; electric motor current, voltage, and temperature rise; opening and closing positions of various valves, sand filter pressure status; clean or regularly replace the filter cartridge (net) of the hair catcher; test the automatic start of the sewage pump daily.
Swimming pool water cleaning and disinfection
1. The selection of disinfectants should meet the following requirements: ① Strong sterilization and disinfection ability, and have a continuous sterilization function; ② Do not cause water and environmental pollution, do not change the water quality of the pool; ③ No or minimal irritation to the human body; ④ Minimal corrosion to the building structure, equipment, and pipelines.
2. Swimming pool water should be disinfected with chlorine-containing disinfectants. Currently, commonly used chlorine-containing disinfectants in China's swimming pools include: liquid chlorine, bleaching powder, bleach, sodium dichloroisocyanurate (TCCA), etc. Bleaching powder: Due to its residue, it easily clogs pipes and affects water quality, and is gradually being phased out. Bleach: The chlorine content is extremely unstable, and the available chlorine will gradually decrease due to factors such as environment, temperature, humidity, light, and storage time. Liquid chlorine: Leakage prevention measures should be taken during disinfection, including the water treatment room should be away from the swimming pool and enclosed, and the room should be equipped with an emergency alarm device, etc.; liquid chlorine should be added automatically using a vacuum method, and a device should be set up for sufficient mixing and contact between chlorine and pool water. Sodium dichloroisocyanurate (TCCA): Due to its conjugated group, it gradually decomposes and releases hypochlorous acid in water, and the remaining cyanuric acid salt has a stabilizing effect on the available chlorine in the water. It is itself non-toxic and quite stable in storage.
3. If conditions permit and necessary, ozone, ultraviolet light, or other disinfection methods can be used. When using ozone or ultraviolet disinfection, chlorine disinfection should also be used to maintain the continuity of disinfection.
4. The amount of chlorine added to the swimming pool water should be determined based on the calculation of the free residual chlorine in the pool water. The amount of chlorine added to the foot disinfection pool water should be determined based on the calculation of the free residual chlorine in the pool water being 5-10mg/L, and the medication time is best 1-2 hours before opening. During the opening hours of the swimming venue, the residual chlorine in the swimming pool water should be measured regularly and recorded. If conditions permit, the residual chlorine should be measured every 2 hours during the opening hours of indoor swimming venues; the residual chlorine should be measured every hour during the opening hours of outdoor swimming venues. To prevent algae growth in artificial swimming pools, copper sulfate can be added to the pool water (2-3kg per 1000m³ of water). When algae are found, the maximum amount of medication should not exceed L, and it is advisable to add it 1-2 times per month.
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