Where The Water Goes - Plumbing Plan

This is the plumbing plan for the house that I am designing. The point of the plumbing plan is to allow the builder to see where all of the water lines are supposed to go. I think that the hardest part about making the plumbing plan was trying to figure out a good way to get the pipes to everything that needs water, but doing it in a way that uses the least amount of piping. The plumbing plan affected my house because it made me have to add a 6 inch wall next to the stairs, so that I could get the water lines to the second floor and to the two bathrooms up there. By doing this plan, I learned the different types of lines that are used to show different types of water lines.