I bought a house with an in ground pool (pool was put in summer of 2005) and have never owned a pool before. The house was for sale and vacant for at least 3 years and I don't believe the pool has been touched in the last 3 years. I live near Chicago so I wasn't planning on messing with anything until spring at which point I want to do a complete drain and cleaning of the pool. I'm hoping that when they closed the pool years ago they got all the water out of all the lines but I guess I won't know until Spring. There is currently a lot of algae and a lot of water on the cover. Should I do anything before winter if I'm going to be draining the pool? Thanks!