I have a Hayward Swimpure Plus. The instructions said to add salt and then run the system for 24 hours, with chlorine percentage set to 0, then measure salt level. I did that and got a reading of 3500ppm. Then I turned the chlorine dial to 50%, per the instructions, and in about 30 minutes the chlorine level was at 2000ppm. Do I need to add more salt? Which reading do I go by, and does generating chlorine cause the salt level to read lower?
Much thanks for any help.