I think I know what happened but I'm not sure how to fix it.
In an effort to please the wife (and get rid of algae *fast*) I used some algacide -- yep, I know better, but I've done it in the past without difficulties. The problem is that I used a different one this time (bought it by mistake) but it *did* say "anti-foaming for use in pools and spas".
Anyone want to guess? Yep, I've got a foaming pool now. The pool isn't too bad, except when the solar comes on, but there's no turning on the spa without it looking like wash day. Not only that, but the whole pool looks a little green (might just be this early morning, and the fact we had tons of rain the last few days).
Is there any way out of this short of draining the pool and starting all over? One thing for sure -- only bleach treatments from now on (assuming I can get this solved).