Riser Diagram

[SteveH]

I applied for a permit and the plumbing official stated "Riser diagram must be in accordance to N.S.P.C. 2006". I have done many plumbing permits with a riser diagram and have read the code but cannot find a riser diagram according to above code.

Is there a website illustrating this riser diagram or any other help is appreciated.

[PLUMBILL]

They should be able to show you typical illustrations or be able to tell you where you can find that in a code book, in the reference section of your local library. Are you a licensed plumber

Another thing you can do is what architects and engineers do when they submit plans around the country and that is back vent every fixture with the correct size vent pipe, this design will pass every code that applies in the USA that I know of.

[SteveH]

No, I'm not licensed but this is just a simple basement shower, toilet and sink. I'll check with the building official and I did vent the main pipe and showed the pipe sizes. Thanks for your input.

[PLUMBILL]

What you are telling me is not the correct way to design plumbing, even what you might think is simple plumbing. The more you learn the more you really don't know.

I don't think you understood my last post concerning the proper design of plumbing and you will need to call in a licensed plumber if you want to get the job done right.