Re: Ion exchange salts

Actually potassium chloride is available easily two ways:  As
"NoSalt", a salt substitute in many large supermarkets (for nutrient
quantities), and as a recharger for ion exchange units in hardwater
areas (it is promoted as "superior" to sodium chloride for
recharging, and is premium priced, but still VERY cheap).    Dave

Dave Gomberg, Experimenta      San Francisco CA USA   gomberg at wcf_com