Janet,

Thank you for your reply. I have been doing a lot of reading on the BBB approach and I think I may be a new disciple. Unless convinced otherwise my plan is to bring the water level back up to 10" below my jet to prevent any pool damage. (Yesterday I pumped it down to 14" deep). Then throw in my winterizing chemicals , cover and let it sit until spring. Then after an entire winter of researching the BBB process I plan to convert my pool over. My pool guy wants me to buy a new filter in the spring also, but I think I will go with BBB first...I really have no good reason to think my filter is suspect and I think he is saying the filer because 1. he has no idea whats causing my algae problem and 2. he wants to sell me a new filter. Thank you so much for your quick response!