Plumbing I is the first year of a four-year training program. This is a theory class. Books, supplies and personal safety equipment are not included. Certificates will not be issued for attendance less than 144 hrs. Topics covered: carbon steel pipe and fittings, plumbing tools, cast-iron pipe and fittings, intro to plumbing math, fixtures and faucets, intro to plumbing drawings, intro to drain, waste and vent (DWV) systems, plastic pipe and fittings, copper pipe and fittings, and intro to water distribution systems.