Breadcrumb Home Construction PLBG 1005 PLBG 1005: Plumbing Fundamentals I Download as PDF Program Construction Credits 4 This course introduces the student to the basic elements of the plumbing trade. Topics include introduction to the trade, plumbing safety, tools of the trade, plumbing math, and plumbing drawings. Corequisites COFC 1080: Construction Trades Core