Well, it's always been that high on the filter so I don't know. Skimmer basket is fine (and good suction) but I'll check the pump basket (all valves seem to be operating correctly).

I think the problem with the cell was that it was clogged -- I cleaned it and I suspect it will be fine (only a year old). Salt level is fine (but zero Stabilizer so I'm having issues with it holding chlorine, natch -- will take care of all today).

Thanks as always for the help.