I have a 15,000 gallon in-ground pool with a SAND filter. I had it up and running all summer last year with the help of this forum and the pool school. It was great!!
However, over the winter, I haven't touched it.... and didn't have a cover on it... So, as you can guess, it was a swamp and has a ton of leaves in the bottom of it.
So, here's the scoop:
I followed the instructions in pool school to clean a swamp (turning-your-green-swamp-back-into-a-sparkling-oasis-t4147.html).
It looked like it was working really well at first. The water got cloudy (cloudy green) and started going from green to blue/green. However, my FC level basically never went down... I mean, the article said "The first few times the FC level is likely to be either zero or quite low" but mine did a REALLY good job of staying at almost shock level every time I tested it. Is that ok? Now, it's still green and doesn't look like it's changing even though I'm keeping the chlorine at shock level. I heard it was supposed to turn milky... does that just take a while with a sand filter or did I mess something up?
My plastic steps and the plastic parts of my ladder and skimmers all have some sort of brown/rusty staining. I realize that it's because I didn't take care of my pool, but is there a way to clean that? Will it go away when I get my pool cleaned up? What chemical imbalance caused that?