The two KEY points of mixing it into sparkling water are:

- those deeply sodium deficient find taking salt acts on the stomach creating nausea, when you add sparkling or CO2 to that this is greatly diminished. Once you are less deficient this goes away..

- near 0 PPM water like Distilled or RO water to supply enough water, similar to Saline IV

Also using Mineral water leaves you with minerals again that may interfere with the IMAM.

If I had no access to good Soda water I would use Distilled water instead..

Potassium Chloride is also used in Water Softeners. I just went to Wiki where that info has nearly disappeared.

A bit of education on 'Kationenaustausch' is of value here since the ion exchange of a water softener is similar to the human battery: https://en.wikipedia.org/wiki/Water_softening#Regeneration_of_ion_exchange_resins

NOTE: KCL has been nearly lost in that article.. now who controls wiki..