Originally Posted by CluelessInNY
Is there a reason that simple bottled water can't work in a tank?
It depends on what you mean by "bottled water."
If you mean distilled water from a store, then that's probably just as good as RO
- but you don't really know. It all depends on the machine/facility that is making the water, which you have absolutely no control over.
If you mean bottled water for drinking, then no... I wouldn't recommend it. Granted, it does have the chlorine removed, but to make it taste good, they normally add various minerals and salts back into it. It's probably consistant between brands (same recipe all the time), but not "pure."