Here's a strange one for you: Ever since I installed my SWG about a month ago (and brought the salt level to 4050ppm,) if I'm in the pool for about 45 minutes, my feet start to wrinkle on the bottom. One night we had friends over in the hot tub chatting for hours and my feet wrinkled so hard it hurt to stand on them for like 2 hours after I got out! I can't imagine the salt alone is doing this, because I've been in the ocean for an hour or more (at 10X the salinity) and don't have this issue. I used water softener salt, and nobody else is complaining, so any guesses as to what might be going on? Do I need to see a doctor?