Swimming is a fitness and entertainment activity that many people like, in the pool can not only enjoy the cool, but also relax the mood, think about the heart is beautiful, but everyone should pay attention to when swimming in the pool! Remember to be sure to choose a qualified regular swimming pool! The harm of an irregular swimming pool is worse than you might think! Before swimming, you can pay attention to whether the swimming pool has a valid health permit and water quality test report, and you can comprehensively judge the swimming place by observing the clarity of the pool water with the naked eye at the swimming place. So, what are the swimming pool water quality testing indicators? What are the swimming pool water specifications?
What are the swimming pool water quality testing indicators?
1. Residual chlorine
Residual chlorine refers to the effective chlorine left in the pool water after being chlorinated and sterilized and touched for a certain period of time. Swimming pool water contains a certain concentration of residual chlorine energy effectively inhibit the reproduction of bacteria and viruses, preventing the spread of infectious diseases. However, excessive concentration of residual chlorine will have an irritating effect on the human eye mucosa, skin mucosa and oral mucosa; Residual chlorine is too low and does not play an effective role in sterilization. Therefore, the residual chlorine cannot be high or low.
2. pH value
pH is an indicator of the pH of water, the acid and alkaline environment is easy to cause irritation to the eyes and skin of swimmers, the pH is too high, and may also reduce the effectiveness of free chlorine in water. The pH standardization of swimming pool water stipulated by the state is between 6.5-8.5.
3. Urea
Urea content is a unique standardization in the standardization of swimming pool water quality in China. The urea in the pool water is mainly derived from the body's sweat, secretions and dirt. Too much urea indicates that the pool water is more polluted.
4. Turbidity
Turbidity is an indicator that reflects the physical properties of pool water, which can intuitively reflect the amount of particulate content of pollutants floating in pool water, which is simply a reflection of the clarity or transparency of pool water.
5. Coliform bacteria
If there is a large number of E. coli in the swimming pool water, it means that the pool water has already been contaminated with human feces.
What are the swimming pool water specifications?
1. Special water meters for pool water replenishment metering should be installed;
2. It is advisable to install an online recording device for remote monitoring of water meters;
3. The cycle period of pool water should not exceed 4h;
4. Water quality online monitoring device for residual chlorine, turbidity, pH, redox potential and other indicators should be set. The monitoring point on the circulating water supply pipe should be located before the filtering equipment process after the circulating water pump; the monitoring point on the circulating return water pipe should be set before the flocculant dosing point;
5, should be set up chlorine, chlorinator should have a pressure stable and uninterrupted water source, its operation and stop should be with the operation and stop of the circulating pump set up interlocking device;
6. The disinfectant input location should be between the outlet of the swimming pool water purification and filtration device and the water supply outlet of the swimming pool;
7. The circulation purification equipment shall not be connected with shower water and drinking water pipelines;
8. The place, filling purification and disinfectant area should be located on the downwind side of the swimming pool and set up warning signs;
9. The swimming pool water treatment machine room should be equipped with a detection and alarm device matching the purification and disinfection of the pool water, and set up a clear identification.
10. Hair filtration device should be provided.
Fanyu testing can detect indoor swimming pools (pavilions), and provide public place health license health testing, reliable inspection and testing data can be used for the health supervision department for the record, inspection and testing report has social credibility and scientific authority.