Swimming Pool Chemicals

The most commonly used swimming pool chemicals are generally chlorine chemicals, which is a disinfectant that dissolves in water to produce hypochlorous acid with antimicrobial activity. Its antimicrobial active ingredients are often expressed as available chlorine. Due to a large number of people in contact with the pool water, the pool water will be contaminated by bacteria carried by the swimmers themselves. When swimming in the pool, swimmers are prone to accidentally drink into the pool water. If the pool water is unhygienic, it will cause swimmers to feel unwell and may even cause illness. That is to say, in order to ensure that the water in the swimming pool is clean and protect the health of the swimmers, swimming pool chemicals must be added to the water to kill pathogenic microorganisms.

Swimming pool water treatment chemicals used to disinfect pool water must meet certain requirements.

First, they should be harmless and non-irritating to the human body and active at low concentrations.

Secondly, because pool water is constantly contaminating by pathogenic microorganisms, these swimming pool chemicals need to remain active for a long time. Chlorine disinfectants can kill various microorganisms, including bacterial propagules, viruses, fungi, mycobacterium tuberculosis and the most resistant bacterial spores, thereby ensuring the cleanliness of the swimming pool and the health of people.

Thirdly, commonly used chlorine swimming pool disinfectants include inorganic chlorine compounds(such as calcium hypochlorite chlorine) and organic chlorine compounds(such as TCCA 90 chlorine, SDIC chlorine). Refer to the detailed introduction of the products below and choose depends on your requirements from Fengbai now.

Chlorine is one of the common disinfectants. It is not only the best disinfectant for swimming pool water disinfection, but also commonly used for sterilization and disinfection of drinking water. Meanwhile, it also exists in many common household cleaners. Chlorine contains a chemical that helps kill bacteria and algae. Whenever chlorine combines with water, it breaks down into hypochlorous acid. Then these chemicals can help destroy or oxidize bacteria and other dangerous microorganisms, making water safer for using.

The biggest benefit of chlorine is that it can kill all kinds of bacteria, fungi that may be present in the water. If a pool isn’t chlorinated, it will become a petri dish full of various harmful bacteria. Swimming in an unchlorinated pool exposes swimmers to a number of potentially harmful bacteria. So despite the risks you’ll hear about chlorine, chlorine disinfectants are necessary for pool water disinfection.

• Oxidation of hypochlorous acid. Hypochlorous acid is a small neutral molecule. It can diffuse to the surface of the negatively charged bacteria and penetrate into the bacteria through the cell wall to oxidize, destroy the phosphate dehydrogenase of the bacteria, unbalance sugar metabolism and cause bacterial death.
• The role of new ecological oxygen. The decomposition of hypochlorous acid forms new ecological oxygen, which oxidizes bacterial protein.
• Chlorine binds to cell membrane proteins to from nitrogen and chlorine compounds, which interferes with cell metabolism and finally causes the death of bacteria.

• The concentration and duration of the chlorine swimming pool chemicals used. The general rule is that the higher the chemical concentration, the longer the duration time, the better the sterilization effect. However, with the increase of the chlorine chemicals concentration, the PH value of the solution also increases. Sometimes it is necessary to prolong the duration time to sterilize.
• PH value. The lower the ph, the stronger the bactericidal effect. The bactericidal effect of chlorine disinfectants mainly depends on the concentration of undecomposed hypochlorous acid in the solution. The lower the PH of the solution, the more undecomposed hypochlorous acid. As the PH value rises, more and more hypochlorous acid decomposes into hydrogen and hypochlorite ions, and loses its bactericidal effect.
• Temperature. The increase of temperature can enhance the sterilization effect. However, don’t heat the sodium hypochlorite solution, otherwise it will cause its decomposition and reduce the sterilization effect.
• Organic substances. The presence of organic substances can deplete available chlorine and affect its sterilization effect. Its effect on low-concentration disinfectant is obvious. But organic substances has little effect on high-concentration disinfectant, such as dichloroisocyanuric acid SDIC and trichloroisocyanuric acid TCCA.
• Reducing substances. Reducing substances such as thiosulfate, ferrous salt, sulfide, and amino-containing compounds can also reduce its bactericidal effect.
• Water hardness. Generally, the hardness less than 400mg/L has little effect on its bactericidal effect.

• Disinfectants with strong sterilization and disinfection ability, and has the function of continuous sterilization.
• Disinfectants won’t cause water and environmental pollution, won’t change the water quality of the pool.
• Disinfectants that are non-irritating or minimally irritating to the human body.
• Disinfectants with little corrosion to building structures, equipment and pipelines.
• Choose chlorine disinfectants. Trichloroisocyanuric acid TCCA 90, sodium dichloroisocyanurate SDIC, calcium hypochlorite for sale in our company will be your ideal choice.

The most important way to keep your pool water safe is to manage the chemicals levels of your pool water. When used properly, chlorine in the water won’t cause you any harm if t comes into contact with your skin or eyes. Maintaining a water balance will maximize the PH value and chlorine content of your pool water, reducing the risk of overexposure to chlorine and other problems caused by inadequate chlorine levels in pool water.  

A well-maintained swimming pool should contain safe levels of chlorine. First, put in the correct ratio of chlorine chemicals based on the water volume and use frequency of your swimming pool. The recommended chlorine level in swimming pool is 1.0 to 3.0ppm. After adding pool chlorine chemicals, it is recommended to wait about 4 hours before swimming. The best way to check if a pool is swimmable is to test chlorine levels. Once chlorine levels is below 5.0ppm, it is safe to swim. However, regularly maintained chlorine levels should be lower, between 1.0ppm and 3.0ppm.