Does anyone have any ideas on how to remove scale from a pool liner? It feels like you're walking on fine sandpaper in the pool. It's an above ground pool, 12' x 24', and the scale is on the bottom and about 6" up the sides. Above that, the walls are nice and smooth. I maintain the ph level right around 7.0 - 7.2. The water is nice and clear, just has that damn roughness on the liner. I've tried brushing it, to no avail. Got some cleaner from the pool supply store, it's almost like a paste so it doesn't dissolve so quickly, but that didn't do it either (it's really hard to apply it underwater and get it to stay in place, too).
Would draining the pool and using vinegar take care of it? If so, I'll just wait until I close it for the season and do it then. Or am I stuck with looking into a new liner? Thanks!