While the water is crystal clear, after a week the chlorine is not leveling. I am setting the shock level at 16 (based on 40 CYA), but after doing a drop test every night the FC still drops by a point or two. Sometimes I have CC, sometimes not.
Not able to brush the pool everyday, but every other day. Even got in the water to scrub the seam around the steps, under the ladder steps, around light, etc.
Some mornings I see a little evidence of brown along the vinyl seam on the pool floor, but not sure if just dust, pollen or dead algae. (Using a solar blanket.)
Do I need to bump the shock level to 20? (Saw in another post.) Right now I am going through bleach and a LOT of my TF-100 chemicals. R-0871 almost gone.
Any advice appreciated.