I just got a RO sytem from a friend of mine and I am not sure if it is just RO or RO/DI. How do I find out? Also I want to hook it up in the garage coming off of the washer. I have the y splitter already but I need the hose bib adapter like the one here http://www.buckeyefieldsupply.com/sh...owspecials=109 . The fourth one from the bottom. I already went to lowes and they told me that they do not have them there.