[Myanth]

Found it! Thanks.

The conversion table is in the freshwater section. Didn't see it till this morning.

multiply my 170 reading by 0.056 = dH, 0.07 = Clark H, 0.1 = fH, 0.02 = mEq/L

so I guess I am at 3.4 mEq/L or 9.52 dH in degrees? looks like a degree sign next to it.

Cool. Is this too hard? I'll aim for 2.9 mEq, both the mag and calcium suppliments say that they can lower hardness slightly. I'll get the Ca up and retest.

Thanks all
Mike