It's Pee, Not Chlorine, That Turns Your Eyes Red In Pools 

People that get irritated eyes coming out of the pool think its due to just chlorine. But it's actually chlorine that is mixed with urine, sweat, fecal matter and dirt which hurts your eyes. This was reported by KXTV in Sacramento, through KXTV Reporter Gabrielle Karol. Once she finished up with the report, she jumps into the pool not before putting on a pair of eye goggles.