So would i need to do 100% RO or could i just mix it? I'm thinking if i put a 50 gal potable water jug in the garage and fill it with RO i could mix it with tap and not have to worry about running a RO system outside of a few days a month .. I rent so i would end up getting a system and hooking it to my 1/2 bath on the 1st floor sink and running it for long enough to fill a large container if i needed to go that way.