We just bought a short sale house. The pool probably is not used for two years. I just opened the cover. Water doesn't look too bad. Clear, but a little green (at least I can see the bottom). However, there are a lot of stuffs on the bottom. I never own a pool. So, there are lot of things to learn. In skimmer, there is a pipe stick out. Is this for vacuum? How can I remove it to put skimmer basket in? When I turn on the pump, should I just vacuum the pool bottom stuffs to drain first,or just let filter take care that? Should I shock the pool until I clean up the pool or shock then clean? I saw a test kit (Taylor K-2105) in pool room from previous owner. Do I need buy all new solutions or old solutions are still ok? Sorry, too many questions. Thanks.