I know you are right about the purifed/distilled water. I had read that several times, but was being anxious to try it and too lazy to go to the store for distilled water. Since the box said "USE ONLY TAP WATER", I thought what the heck, this is only practice. But I'll take your advice and not do it that way again.
I feel like the reason I released so many stones was because of all the apple juice I drank. I hadn't tried that before because I don't like apple juice that much, but I think it helped and I decided that it's really not that bad. I think organic is much better than that yucky syrupy sweet stuff they make you drink when donating blood.