Pulled the steps out of our pool last week. Such a sad day. Not draining this year though. Going to shock, put in polyquat and cover. Hopefully it will be as clear in the spring as it was this year. Thanks so much to every one who advised us on the yellow mustard algae this past spring. After we followed your advise and got rid of it our pool was crystal clear all summer. We will never again use pool store fixes for any problems we may have. Will be counting the days until spring!!