Chlorine's primary function in a pool is to disinfect the water, killing harmful bacteria and germs. It creates a safer and healthier swimming environment.
Here's a more detailed breakdown of chlorine's role:
- Disinfection: When chlorine is added to pool water, it forms hypochlorous acid (HOCl) and hypochlorite ion (OCl-). Hypochlorous acid is the more effective disinfectant. These chemicals kill bacteria such as Salmonella and E. coli.
- Germ Killing: Chlorine also destroys germs that cause viruses, like those responsible for diarrhea and swimmer's ear (otitis externa).
- Algae Control: Chlorine helps prevent the growth of algae, keeping the pool water clear.
- Oxidation: Chlorine oxidizes organic matter, such as sweat, body oils, and debris, further contributing to water clarity and sanitation.
In essence, chlorine maintains pool hygiene, preventing the spread of waterborne illnesses and ensuring a pleasant swimming experience. While sometimes associated with a strong odor, properly maintained chlorine levels result in little to no smell and healthy swimming conditions.
