Hi, it is winter in Atlanta. Temperature got down to 24 last week (although only for a few hours)-- so I was running the pool when I realized the next day bubbles coming out of the return jets. I put in a new O ring in pump basket, checked the drain plugs and put some teflon tape on the joint leading into the pump. I checked screws around all the valves, etc. and still had air in the pump and filter pressure was really low. The pump would fill with water and then sound like a toilet flushing over and over. I ended up shutting the pool off and covering the equipment with tarps and a "pine straw bale" wall around the whole thing. Two days later--rapid water loss. Down to bottom of skimmer now and seems to have stopped. Any ideas? Pool Company can't get out until tomorrow.