Originally Posted by
lifespeed
I use an RO for both the drinking water at the kitchen sink, as well as plumbed to the refrigerator. I did a taste test with RO vs softened, dechlorinated water (I have a Fleck 7000 carbon tank ahead of the softener). RO water tastes much better! I highly recommend it. The softener is supposed to make it easier on the membrane and prevent Ca and Mg fouling.
One thing you might also consider is a carbon filter in front of the softener. I do notice the lack of chlorine in the shower, and it is a nice improvement. Not to mention it will help with resin life.
Edit: don't use copper to plumb the RO, use polyethylene or stainless steel tubing. It will pick up some of the copper in the tubing if you use Cu.