Water systems... plumbing layout?

Can anyone point out any resources to general plumbing layout plans. Similar to the electrical wiring plans, I would like to find plumbing plans. Just entertaining all the bells and whistles with regards to plumbing.
Points of interest include:
On board water tank, city water hook up, pressurized tank, electric pump, hot water, extended shower head, check valve placements, water filteration placement, etc...
Not to say that all of this will be incorporated, but to plan for such amenities, requires a reservation/build out of galley space. I just need a place to start. Has anyone drafted out plans that could be shared here?
Points of interest include:
On board water tank, city water hook up, pressurized tank, electric pump, hot water, extended shower head, check valve placements, water filteration placement, etc...
Not to say that all of this will be incorporated, but to plan for such amenities, requires a reservation/build out of galley space. I just need a place to start. Has anyone drafted out plans that could be shared here?