Deffinitions Flashcards
What is a soil or waste pipe that goes through one complete story?
A stack
What is a soil stack?
Drainage including human waste… extending through 1 complete story. A soil stack is a shit stack!
What is a waste stack?
Any drainage pipe that does not contain human waste that extends through 1 complete story
Wet venting serves what two purposes?
Drainage and venting
How many fixture units is a bathroom group?
6 fixture units
< 45° is considered?
Nominally horizontal
45° to 90° is considered?
Nominally vertical
What is air gap?
The unobstructed vertical distance between the outlet and the flood level rim
What is the minimum air gap?
1” or two outlet diameters, whichever is greater
A bathroom group consists of?
- 1 lav
- water closet
- bathtub or shower
Horizontal piping is meant to flow at what rate?
2 ft/sec flow rate
What is a fixture drain?
The pipe that connects a trap serving the fixture to another part of the drainage system
What does flood level rim mean?
The top edge at which water can overflow from a fixture or device
What is the purpose of a trap?
To hold a liquid seal that will prevent the passage of gas, but will not materially affect the flow of a liquid
What is a trap arm?
The portion of a fixture drain between the trap weir and the vent pipe fitting
