just wanted to say thanks for the link http://www.troublefreepool.com/turni...sis-t4147.html
After winterinzing our 17x29 above ground vinyl pool, we took off cover to find a green swamp. After following advice on your post EXACTLY, within 5 days water was almost crystal clear again.
Your site has been like my pool bible. I use the pool calculator every time I test, and use the recommended BBB method. Saves me lots of time and money. Thank you for all the work and valuable information here. A year ago, I knew nothing about pool ownership, and now I am helping friends that have been pool owners for years by recommending your site. Many thanks!!!
P.s. I would post before/after pics, but can't figure out how to get pictures posted