Sanitation, Plumbing Design and Installation (Part 5) | Master Plumber Licensure Exam Refresher

The video begins by defining convection as the transference of heat by the upward movement of warm, light air current. It then discusses that all plumbing materials, fixtures, or devices must conform to approved applicable standards, or an alternate approved by the authority having jurisdiction.

Pipe joint material should be insoluble in water, non-toxic, and applied on pipe threads and inside fittings. Wipe joints are permitted with lead tub waste openings. Surfaces to be joined by soldering or brazing must be cleaned bright by mechanical or manual means.

Openings in framed construction for lead tub waste should be protected by metal collars or screens. Closet bends or stubs must be cut to present a smooth surface even with the top of the closet ring. Every water supply to a urinal must be protected by an approved vacuum breaker.

Tanks flushing more than one urinal must be automatic in operation. Urinals are not prohibited and the clear vertical distance between a faucet spout and the flood level of a receptacle is defined as an air gap. Shower compartments and receptors, with two exceptions, should encompass a 33-inch diameter circle. The curb or threshold of a shower compartment may be limited to comply with accessibility standards.

Shower pan linings can be constructed with 15 lb asphalt felt, and joints in copper shower pan liners must be soldered or brazed. Water closets set side by side should be no closer than 30 inches center to center. The minimum distance from a sidewall or partition to the center of a urinal is 12 inches.

No manually controlled flushometer valves should be used to flush more than one urinal. However, automatically controlled flushometer valves may be substituted for automatic flush tanks.