Why do they put so much chlorine in pool. Kids coughing all the time. This is dangerous. Do not lut kids in oool

The difference between here and major water parks, is that the water used I here is the same water used thru out every part of this place... major water parks partition there water supply for individual areas of there park.also the chlorine is so bad because the Sahara Sam is in doors... The area is small and not enough ventilation.

I'm going to guess it's the high amount of people in the water, and maybe not the best quality chlorine. I'd be interested to know what type of chlorine major water parks use