Again, thanks so much for the replies. When breaking in to any hobby, it is hard to distinguish between necessity and fad.
At home, we already drink bottled RO water. I know it isn't RO DI, but after some phone calls, faxes, and running my own tests the water seems to be good enough for now. Although it isn't going to be the most econimical solution, eventually, I will go out and purchase an RODI unit and be done with it.
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