We ended up with a swampy mess at the end of last summer after getting completely screwed by our "professional pool installer with 17 years experience". Im brand new to this. We took the cover off, vacuumed like crazy for 2 days to get all the leaves out, shocked it, flocked it, and vacuumed to waste. We went from Black, to Green, to Murky Blue-Green. And I'm stuck. What do I need to do next? I'd love to learn the "BBB" method and feel comfortable with the chemicals. Ive read over everything and as soon as I feel like I understand the chemistry of it all, I overthink it and start back and square one.