Remodel bath?

Question:This is on my 2nd story. I want to rotate the toliet 180 degrees, move it 4 feet across the floor to the opposite side of the room. This is a California 15 year old house. How would that affect the waste line since it now goes pretty much straight down a wall. The joices are if I remember are about a foot tall. And the water supply line would go back through the floor? The plans call for a Toto Toliet. Thanks Ron

Answers:
The supply line wont be the problem it will only take a half inch hole to route it. Your waste pipe on the other hand will need a 4 inch hole through a twelve inch joist which could cause a saging floor eventualy, so you should beef up the floor joists that you have to cut through. As for pitch it only needs to be 1/4 inch per foot so in 4' you will only need 1" of pitch if you have plans then you should also have engineering that should cover this. HOWEVER I cant stress this enough plumbers do not know or care anything about structual engineering you will need a carpenter or an engineer for the floor joists.