well, i don't know what's happening with my filter. i was vacuming yesterday, and as i was doing so, i noticed the water getting coudy and i turned around to see a giant cloud behind me. i looked at the return, and it was blowing everthing i was vacuming up BACK INTO THE POOL !!! why would that be happenig? i just shut 'er down and walked away in disgust. almost took a sledge hammer to pool, but calmer heads prevailed. so, what should i do? any ideas? thanx.