I'm trying to figure out what my problem is, and now, from reading several posts, I'm wondering if I don't have two problems.
The first problem, which I didn't think was a problem, is that I keep finding these brownish clumps, almost like dust bunnies that I attributed to "gathered dirt", etc. From reading, it sounds like these may be mustard algae, but I'm not sure. I always have the filter running, and the water is crystal clear - and I always have the solar cover on when not in use. Could these clumps be mustard algae? Does anyone have any pics of this?
My second issue that I just discovered yesterday is brown splotches in the pool bottom. They look like stains that are now covering about 10% of the bottom. I tried brushing it and they didn't come off. These splotches weren't there two days ago. I'll have to get the chemical readings when I get back home, but I'm just trying to do some homework to figure out what I am dealing with.