Best Water for Iontophoresis

Hey everyone. I have been using an iontophoresis unit successfully for years in Florida. I recently moved to North Carolina and all of a sudden, the iontophoresis stopped working. In Florida, I would use plain tap water and it worked very well because the water there is very hard. I would only have to do 1 or 2 maintenance sessions (30 minutes) a week to stay 100% dry. My hands would not sweat in even the most stressful circumstances. Once I got to North Carolina, my hands started to sweat profusely again. I called the water supplier and a representative told me that the water in my city is very soft. I tried adding baking soda and salt to no avail.

I then started to experiment with different mineral waters. The mineral water, Volvic, seems to be working fairly well. I can keep my hands relatively dry with 3 or 4 sessions a week, but that is nothing like the effectiveness of the Florida tap water. They still get pretty clammy in stressful situations. I know that the hard water in Florida works very well, but I am unsure of what specific minerals contribute to this. Can I add specific minerals to my water in North Carolina to make it effective or is there a particular type of bottled water that is proven to work exceptionally well with iontophoresis? I’ve seen some online posts where people claim that Badoit mineral water is very effective, but it is not widely available in my area. I fail to understand why no research has gone into proving what minerals are effective in iontophoresis when this is so important.

Collect some rain water and add it to whatever you are using. It worked for me in the past.

Sprawling, have you tried normal saline?

Doesn't seem to do much for me.