Hardness Question

[abcemorse]

I just got a water report from the local utility, out of curiosity, really, fish/plants seem just ducky. It shows units of Carbonate Alkilinity, Bicarbonate Alkilinity, Calcium and Magnesium. Anyone know offhand how to change that to KH, which is the parameter I was really after in the first place? I'm looking into it as well, so if I find it I'll post it (that assumes I'm not the only one who doesn't know..... )

Thanks

 

[VaughnH]

KH is bicarbonate alkalinity. If your water report is like mine it gives the numbers as ppm, usually expressed as ppm of a specific compound containing the substance being measured. A crude way to figure out what the ppm means is to divide by 20, which you can do well enough in your head, and that is roughly the KH in degrees of KH. You could do the same with calcium - add the two ppm and divide by 20 for a crude estimate of GH in degrees of GH. You will want the magnesium ppm to be somewhere around a quarter or so of that of calcium. (not just 1%)

 

[abcemorse]

Perfect, thanks!