A good souce of plumbing design is with A.S.P.E (AMERICAN SOCEITY OF PLUMBING ENGINEERS), as a member you can receive A.S.P.E. Data book which cover a wide range of plumbing topics, also you receive a monthly mag. Plumbing Engineer that updates you on all the plumbing topic on a national level.If you interstead on becoming a member e-mail me back for future information.P.S. Theres a meeting once a month set on the second tuesday of every at the Lone Star Cafe in San Marcos
