Don't know if this is your first boat,, and what you may or may not know.
If you can't find information specific to your boat (try Google, too), then the West Marine Advisors will show you what's there and the only thing different on your boat will be the locations.
An example:
http://www.westmarine.com/WestAdvisor/Pressurized-Freshwater-Systems
Noodle around the Advisors website, very good info, unless you buy Nigel Calder's book:
Mechanical & Electrical Systems. I find it's been called the Bible of Boating. It's a very good book for anyone with a 27 foot boat or larger especially with many systems.