I need suggestions on opening my SWP this year. I am getting ready to take the cover off. I want to know how I get the algea out and get the readings where they need to be? I Think bleach is one of the things. I also need to know should I use my SWG from the start or wait until I get rid of the algea and get readings close to where they need to be. I will be greatful for any help that you can offer. Thanks