Sanitation, Plumbing Design and Installation (Part 6) | Master Plumber Licensure Exam Refresher

The video starts by discussing air test procedures, specifically regarding uniform gauge pressure of 35.4 kPa for at least 15 minutes. It also identifies a compression coupling as a mechanical joint.

A hot water heater is identified as the device used to raise the temperature of domestic water. The curbing stop is noted as a fitting not necessary in house service installation, and the primary purpose of a valve is to regulate fluid flow.

Pipe friction is not considered in sizing water supply piping. Carbon monoxide, a byproduct of methane, is classified as a poisonous gas. For safety, plumbing construction workers should wear shoes. To resolve restricted water flow, replacing a clean filter screen is suggested.

A flush valve is identified as a fixture operating under pressure and requiring a higher supply flow rate. A spud washer seals the bottom of a lavatory bowl. Drains serving one or more fixtures that discharge into another drain or a stack are called fixture branches.

The correct way to measure pipe lengths is "end to center." When installing piping in a load-bearing wooden partition, an acceptable procedure is to drill a hole through the center of the studs. Water containing dissolved calcium and magnesium salts is classified as hard water.

Methane gas is a combination of hydrogen and carbon, and a principal component of natural gas. Pumps in a series are connected for the same GPM (gallons per minute). The primary purpose of a septic tank is to act as a settling tank.

According to the IPC (International Plumbing Code), hot water is considered to be above 120°F. The compression type faucet is now most often used on plumbing fixtures.