I have a 1 year old diamond brite finish. When fresh, I did everything as suggested—keeping ph correct w/acid addition daily, brushing aggressively for 1+ months. All last season.
This season, I must admit I don't brush much, but let the polaris with the sponge on the end do the brushing. Well I recently bought a snorkel set to use with the kids. Underwater w/mask, when I brush the finish a whitish powdery plume comes off.
Is this normal, one year after a replaster? When will it stop? And lastly, does the sponge on the polaris tail count as brushing?
By the way, I use the pool calculator, and the csi was/is within a safe zone all summer. (However---i bet it wasn't that way over winter, i'm sure the ph drifted up)