Newport
Why use distilled water?
If you do not use distilled water, or add a salt or other ionic component to the water before brewing, then the time it takes to make something is greatly reduced. However what you make will not be good. What happens is that instead of making
Colloidal Silver , you will make 100% silver chloride or other salts (from the salt, or chlorine in the water, or silver fluoride from the fluoridation). As the silver chloride builds up it begins precipitating out (it has a solubility of only about .89 ppm). If you drink this you will not only not be getting any
Colloidal Silver , but will be getting a silver salt which by itself can cause argyria. Stan Jones is a prime example of this happening, he was making a witch's brew of silver compounds by not using distilled water.
http://www.quantumbalancing.com/real_facts_on_colloidal_silver.htm