Fire Sprinkler Head Covers Where Can I Find A Good Online Guide For Installing A Fire Sprinkler System?

Where can I find a good online guide for installing a fire sprinkler system? - fire sprinkler head covers

I especially need to know what size pipe and what kind of spray for a sprinkler system inside. You also need to know how it should be every leader. If you asked me directly to a guide that covers everything that would be great. I searched and searched and all I got was a real headache. I know how to install, but we need above all the guidelines so that you can do so under the law.