Hi, new to this forum and I apologize in advance if these questions have been answered in the past, I tried to do a search ahead, but didn't come with any conclusions. We are currently in process of buying an unfinished house. Unfortunately, all the plumbing needs to be done. The previous owner payed no attention to plumbing codes or even plain common sense in some areas. Our plan is to install the new system using pex, due to simplicity and cost. I've read alot about remote manifold systems and central manifold systems and then home run systems. On some sites, I've read that you do not want to mix manifolds with control valves (meaning if I have a manifold with a dedicated line to my kitchen sink, I shouldn't also have a cut-off valve under the sink in addition to the manifold). Is this correct?? Doesn't seem to make sense to me why not. My other question maybe more a matter of opinion. Do you find it better to have one central large manifold with dedicated lines to every ficture, or a smaller manifold with lines to different areas? Once you're in these different areas, such as the bathroom, then branch out to your fixtures, i.e. toilet/shower/sink. Sorry about the newbie questions, but I just can't afford a plumber right now.