One last thing.....I decided not to keep the RO unit after all. I don't really know much about it. It looks like this one, I'm the 2nd owner, but the filters are still white (I read somewhere they turn brown with use). It's been outside off and on (connected to the outside faucet), so there's a small amount of rust on the screws, etc. Still works just fine. Takes about 10 hours to fill a 30gal trashcan.
http://www.marinedepot.com/ps_ViewItem~idP...ct~YSP1131.html