Hey everyone new pool owner. Thanks to TFP I got my pool up and running beginning of June and have had no problems for 2 months. Then I went on vacation!! I came back to weird black/dark green spots around the pool and yellow dusty Algae on the steps etc. So my first plan is to vaccum and brush brush brush. In the mean time I need to figure out my levels. I added to much stabilizer beginning of summer and weirdly my pool did fantastic. Felt like less bugs, kept the chlorine well? Is that possible my water and side were crystal clear. However in July my cya dropped to 50 and so many problems are arising? Any correlation? Should I bring stabilizer up a bit or wait till after I slam the pool? ....now for the leak. One day I noticed my under my skimmer basket looked like it had bugs and debris so I stuck my vaccum hose in it and it was drawing water in some vortex lol and now I have to add water once a week? Could that also be a stabilizer thing too? Where do I begin?