Well I went out and bought a replacement strainer basket o-ring. What was odd was the one that was in there had the flat edge as the inserted edge, while the new one has the flat edge on the sides. I hope I explained that okay. Anyway, we replaced it. I wanted to clean the clear plastic cover of the strainer basket. As I was cleaning it, I noticed that one of the corners was cracked and ready to break off. Now I don't know if it was like that before I cleaned it, or if I broke it while cleaning it. We also replaced the o-ring on our sand filter (at the top where you bleed air from) because that didn't seem to be really snug.

So we turned the filter back on and we still have foam, but don't know if the foam was already there. We have now turned off the filter to let the foam disappate and then we'll turn it back on and cross fingers that no foam comes back.

Thanks again! I really appreciate the help more than you know. We seriously considered switching to chlorine this year but since we still had quite a bit of Baquacil left, we decided to wait until next summer, maybe get a salt water chlorinator. Are those good?