Have you tried tap water?
I've used distilled water as a professional for years until the day the commission that grants the organic label requested that I stop buying and throwing away the plastic bottles.
I'm now using tap water like most professionals I know and have not had any issue for 3 years and tons of soap.
We have hard water but it's not a problem.
However I think that the formulation should be well balanced and I do not guarantee that you will not experience problems (DOS) with oils that have a INS below 100.
I've used distilled water as a professional for years until the day the commission that grants the organic label requested that I stop buying and throwing away the plastic bottles.
I'm now using tap water like most professionals I know and have not had any issue for 3 years and tons of soap.
We have hard water but it's not a problem.
However I think that the formulation should be well balanced and I do not guarantee that you will not experience problems (DOS) with oils that have a INS below 100.