Chlorine doesn’t kill all bacteria in the pool

There are microorganisms that are known to be chlorine resistant bacteria such as Cryptosporidium and Giardia. These are bacteria that cause diarrhoeal ailments and gastrointestinal tract infections.If you ingested pool water that is contaminated with faecal substances, then you are likely to be infected by “Crypto” disease. On the other hand, Giardia can also cause chronic diarrhoea and carries parasites that produce cysts.