My numbers are currentlyTc 5
Fc 4.5
CC .5
Ta 40
Ph 6.8-7.2
Cya 62
Ch 500
Scale build up on this 10 yearold pool is also what I'm dealing with. Not too bad now its just above water line and I got it all off with 220 wet sandpaper.
A member posted this advice Re scale
"To avoid it in the future maintain your CSI slightly negative, -0.1 to -0.3. I had issues with scale on the waterline tile a couple of years ago and it hasn't been back since. Enter all your numbers in Poolmath and it will give you a CSI score. Tweak PH, TA and CH to adjust it. If your PH tends to rise then keep your TA lower (60-80) to help slow the rise. "
Also water quality is almost clear crystal but not 100% I plan on deep cleaning the sand filter and if that doesn't do it then researching here about fading DE to it?
Thanks again!
Fc 4.5
CC .5
Ta 40
Ph 6.8-7.2
Cya 62
Ch 500
Scale build up on this 10 yearold pool is also what I'm dealing with. Not too bad now its just above water line and I got it all off with 220 wet sandpaper.
A member posted this advice Re scale
"To avoid it in the future maintain your CSI slightly negative, -0.1 to -0.3. I had issues with scale on the waterline tile a couple of years ago and it hasn't been back since. Enter all your numbers in Poolmath and it will give you a CSI score. Tweak PH, TA and CH to adjust it. If your PH tends to rise then keep your TA lower (60-80) to help slow the rise. "
Also water quality is almost clear crystal but not 100% I plan on deep cleaning the sand filter and if that doesn't do it then researching here about fading DE to it?
Thanks again!