Watergram

Does ANYBODY know how to use the watergram? I read the directions but.....

You can use The Pool Calculator to calculate the Calcite Saturation Index (CSI). It has the advantage of also letting you put in a salt level (usually for saltwater chlorine generator pools), something that the Watergram doesn't have.

Ok I'll use it in conjunction with the calculator. I'm on chlorine so I'll use the calc for that. I'm getting there ....slow but sure wins the race thx Dave