Originally Posted by porky
iv used tap water with some anti-bacterial stuff in my old w/c system...worked great for 6 months...then i upgraded
Tap water is different depending on where you get it. It can even vary from city to city. If you get particularly hard water (contains a lot of dissolved solids), you're screwed. Not to mention it has fluoride, small amounts of chlorine, and many other man made and organic chemicals...