Swimmers in my pool complain that their eyes are burning. Am I adding too much chlorine? If swimmers are complaining that their eyes are burning your pool water chemistry is not in balance. It may be from too high levels of chlorine, but it may also be from pH or alkalinity being too high or too low. Test your water and maintain chemicals in proper ranges. ( Link to Pro Tips Guide to Water Care) Or bring in your water sample to our Water Lab have one of our professionals help you with a complete and simple water care regimen.