our inground pool is causing us to cough when swimming. water is clear, all levels are good, except alkalinity which is a little high. what could be causing this & how do we fix it?


In addition to keeping the water balanced, check the surrounding areas for any growth or mildew. These areas could include skimmer lid, exposed surfaces, decking, etc. Also, have you been measuring combined chlorine or just free chlorine. Combined chlorine could also be an irritant.