“…Both the SARS and the current COVID-19 coronavirus outbreaks in Hong Kong illustrate the importance of proper plumbing design and practice in keeping building residents safe from disease and the profound problems that can develop when unqualified individuals decide to work on building water systems. The axiom “the Plumber Protects the Health of the Nation” is more than a slogan. Improper deviations to building plumbing systems can, and indeed often do, result in very significant loss of life and property…”