MODULE 8: SANITARY DRAINAGE SYSTEM
- Drainage system :: All the piping within public/private premises which conveys sewage, rainwater, or other liquid wastes to a point of disposal
- Sanitary Drainage and Vent Piping :: installed by the plumber to remove wastewater and waterborne wastes from plumbing fixtures and appliances, and to provide air circulation within the drainage piping
- Stack :: general term used for any vertical line of soil, waste, or vent piping
- Soil pipe :: conveys discharge containing fecal matter to bldg. drain/ bldg. sewer
- Soil stack :: conveys discharge of water closets to bldg. drain/ bldg. sewer
- Waste pipe :: smaller than soil pipe/ conveys only liquid waste free of fecal matter
- Branch :: Any part of the piping system other than the main, riser, or stack
- Building drain :: also called house drain; part of the lowest horizontal piping of a plumbing system which receives the discharge from soil, waste, and other drainage pipes inside a building and conveys it to the building sewer/house sewer
- Sewage :: Any liquid waste containing animal or vegetable matter in suspension or solution
- Drainage fittings :: special type of fitting/fittings used in the drainage system
- Deadend :: terminating at a developed length of 2 feet or more by means of a plug, cap, or other closed fitting
- Drain :: Any pipe that carries wastewater or waterborne wastes in a building drainage system
- 15 meters :: for every ___ in total developed length of piping, a cleanout is provided
- 1.5 meters :: Cleanouts may be omitted on a horizontal drain less than ___ in length unless such line is serving sinks or urinals
- Trap :: provides a liquid seal to prevent the emission of sewer gasses without materially affecting the flow of sewage or wastewater through it
- Trap seal :: vertical distance between the top dip and the crown weir of a trap; water in the rap between the top dip and the crown weir
- Dip :: lowest portion of the inside top surface of the channel through the trap
- Crown weir :: highest point of the bottom surface of the crown
- Common seal :: (type of trap seal) 2 inches between the overflow and the top dip
- Deep seal :: (type of trap seal) 4 inches deep