I'll lay off the epsons. My taps ppm is around 450, sometimes its around 580. I onced used one of those pool testers to test for chlorine and it was real high. Burn your nose hairs. I don't even like my kids brushin their teeth with that crap. It's not like you can leave it outside to let the chlorine evaporate because sometimes the sun does'nt come out here until 3pm.