@Michael W, The photo chemistry is designed with distilled water in mind - any other water is hit or miss.
Buy Yourself a distiller ~ $200, pour some water or filter some water and fill it up with it, wait for the distiller to complete, then check the thick gunk on the bottom of the distiller - this is the mineral, micro-bacteria etc. etc. content that gets into the emulsion when You process it without using distilled water.