My calcium is currently really low at 150. I suspect its there because 1) the plaster was redone in 2011 2) the pool was topped off with softened water.
I just recently connected to city water, (i still have my well, but no longer have the water softener hooked up). The well water is hard and the city water is also hard (so i think they're both high in calcium).
The question is, do i continue with really low calcium levels and wait to see if the city & well water raise the levels as I top off? Or is it low enough that i should add calcium now to protect the surface?
really happy to have found this forum