So I got the east coast demo unit. It's got all the bells and whistles. I got a new TDS meter and checked my house water- approx 682 (I didn't know ratings went that high, LOL. 

I ran some  water through my RO. & carbon filters, it was just under 80 ppm. 

i ran some thru the 2nd hose reel from the DI and it was 0.01-  that's pretty IMPRESSIVE. 

I cant wait to get a WFP  and clean some glass and see the results