This MacNews Category Review looks at Mac software for plumbers. Products covered are Construction Book and Perfect Plumbing.
Construction Book
Construction Book (http://www.constructionbook.com/) carries a variety of plumbing and piping CD-ROMs ranging from Cost Estimating to Plumbing Codes and Standards.
Perfect Plumbing
Perfect Plumbing (http://www.powerfiles.com/) is a collection of 3D models with a plumbing theme.