Soon, Viega's new PlumbingCAD software will take the guess work out of PEX plumbing design and save you trips to the supply house! This new software package will be perfect for plumbers working in residential and light commercial construction. It will make it easy to do take-offs and ensure a complete material list the first time around. PlumbingCAD is a great introduction to how Viega MANABLOC homerun systems work and also covers the basics of branch and tee plumbing.