Just thought id mention this.I've been travelling for the last 2 weeks and when I got home today I checked my salt levels and of course salt level is low2200ppm.Salt level is normally in the 3000-3200ppm range(it's been raining alot the last couple of weeks here in Ohio)Just added some bleach tonight and i'll pick more salt up tomorrow and we'll be back on track.Another couple of days and id be shocking my pool.If you haven't checked your salt levels in awhile you may want to check them soon.