Sanitation, Plumbing Design and Installation (Part 2) | Master Plumber Licensure Exam Refresher

The video begins by defining the vertical portion of a rainwater conductor as a "downspout" and a flange that closes the end of a pipe as a "blind flange."

It explains that the lowest horizontal piping receiving discharge from soil waste and other drainage pipes inside building walls is the "building drain." A portion of an underground system that cannot drain by gravity is a "building subdrain."

A fitting used to close the end of a pipe is defined as a "cap." The approximate height of a built-in bathtub from floor level to fixture rim is stated as 16 inches.

A receptacle for retaining liquids to allow settleable material to deposit is identified as a "catch basin." The pH value of 0 is described as "acidic."

A "relief vent" is identified as having the primary function of providing air circulation between drainage and vent systems. The approximate height of a water closet from floor level to fixture rim is 15 inches.

The discharge from any fixture or appliance that does not receive fecal matter is categorized as "liquid waste." A "vent system" is described as pipes installed for air circulation within the plumbing system to protect trap seals from siphoning and back pressure.

The approximate height of a lavatory from floor level to fixture rim is stated as 31 inches. A pH value of 14 is defined as "alkaline."

The approximate height of a laundry tray from floor level to fixture rim is 34 inches. The minimum pipe size for a dry standpipe is 102 mm.

The minimum pipe size for a condensate drain for a 3-ton AC unit is 20 mm. The minimum diameter for a dry standpipe requiring a three-way Siamese connection is 125 mm, and for a four-way Siamese connection, it is 152 mm.

The minimum area and dimensions, maintained from a point above the shower drain outlet to a height of 1.78 meters with no protrusions, are also discussed.