I seem to have made it through the first winter after replastering without getting any scale, so I guess pulling back the cover and making periodical adjustments to pH and TA during the off-season helped. I want to know if these readings look alright...
SI (at a current water temp of 74) -0.04
I know CH should probably be higher but if I plug in a CH of 250, for example, and the water temp gets up into the mid 80s, the SI goes to 0.25...closer to the scaling zone. Let me know if anything should be adjusted.