Taste/Odor Component

[justinl]

water with a TDS of zero tastes gross and isn't as nutritional (if that's the right word) as water with the right minerals. if you use ro/di for drinking water, you're basically stripping the water of everything; good or bad, doesnt matter. the last stage adds the minerals back in after it's been stripped. so obviously, yes it's better to leave out the last stage for making tank water.