stacir;24515 said:If I am following the EI dosing method, and I have very hard well water, do I still need to use the equillibrium?
Tom Barr;24520 said:If you can either test or ask the water dept about what is the GH made out of generally, then you may not.
Some places have high Mg, some moderate etc, some, hardly any at all.
Most places have high Ca, and in some cases hardly any Mg at all.
So adding MgSO4, epsom salt, might be all you need in that case.
If the Mg is high and the Ca low, CaSO4(Gypsum) or CaCl2(Pool Calcium hardness increaser- Lesilie's pool supply, Home Depot etc) might be better.