So my for a surprise birthday gift my Uncle shipped me an RODI system. (Very excited about not having to drive an hour away every time I need water now). The thing is, I'm pretty confused after watching BRS videos and others because they all seem to be color-coded but everything on mine is white. Also, isn't it supposed to have 3 tube connections? I only see one here. The box didn't come with directions at all and the system has no logos or a website to refer to so I can't find them online either. Any suggestions would be much appreciated. Thanks!