Episode 476: Plumbing of a Home Inspection
Home Inspector Podcast by InterNACHI - A podcast by Ben Gromicko

According to the Standards of Practice, the home inspector shall inspect: the main water supply shut-off valve; the main fuel supply shut-off valve; the water heating equipment; interior water supply; all toilets; all sinks, tubs, and showers; the DWV system; and drainage sump pumps with accessible floats.