Water softener effects on patinas

I am moving my studio. The water that I will be using to rinse off
patinas (usually liver of sulfur) on my copper artwork unfortunately
was plumbed through the water softener. We will probably be using
potassium chloride rather than sodium chloride to soften the water.
Will this effect my patinas? My work is very large (not jewelry
sized) so using bottled water is not an option.

Thank you in advance,
Esther