I keep mine sharp by drawing plumbing riser diagrams as well as complex natural gas and propane isometric drawings. I’ve been a master plumber for over four decades. Homeowners, architects and ...

I keep my tiny gray cells in tip-top shape by drawing plumbing riser diagrams as well as complex natural gas and propane isometric drawings. I’ve been a master plumber for over four decades.

I keep my tiny gray cells in tip-top shape by drawing plumbing riser diagrams as well as complex natural gas and propane isometric drawings. I’ve been a master plumber for over four decades.