Is there any maximum chlorine level that should not be exceeded when closing my above ground vinyl pool?
I'm getting chlorine measurements with my kit of over 30 ppm. Could be that my chemicals' accuracy has expired (they are 2 years old) but I don't want to buy a new set of chemicals this late in the season. I have a new dark blue liner & I don't want it to fade over the winter from too much chlorine. As my signature indicates, I have a 12 foot circumference, above-ground vinyl pool. Right now, water temp is 50 degrees F.