The lack of salt in tap water is likely the cause of eye irritation and redness. The concentration of salt in tap water about 2% of human tears. The concentrati

The lack of salt in tap water is likely the cause of eye irritation and redness. The concentration of salt in tap water about 2% of human tears. The concentration in chlorinated pool water is closer to 30% of human tears. Perfectly clean and balanced pool water should be less of an irritant than tap water. https://www.aao.org/eye-health/ask-ophthalmologist-q/is-it-ok-to-wash-your-eyes-out-with-tap-water https://www.aao.org/eye-health/ask-ophthalmologist-q/is-it-o... https://blog.hayward-pool.com/maintenance/how-much-salt-do-you-add/ https://blog.hayward-pool.com/maintenance/how-much-salt-do-y...