Sanitary Drainage, Indirect Waste Systems and Storm Drainage Flashcards
Learn about sanitary drainage systems, indirect wastes and compliance requirements. (45 cards)
True or False:
Buildings on separate properties can share a connection to the public sewer.
False
What material is not approved for underground building drainage and vent piping?
glass
What is the minimum slope for a horizontal pipe that is 2 inches in diameter?
1/4” per foot
What is the minimum slope for a horizontal pipe that is 4 inches in diameter?
1/8” per foot
True or False:
Primer is not required for PVC drainage, waste and vent pipe, and fittings in non-pressure applications up to 4” pipe.
True
Fill in the blank:
Horizontal drainage pipes in buildings shall have cleanouts located at intervals of not more than ______ feet.
100
What size cleanout is required for a 3” pipe?
3 inches
A cleanout plug for plastic pipe is required to be which type?
plastic
Fill in the blank:
Cleanouts for 4-inch pipe shall be provided with a clearance of not less than ______ inches.
18
What is the drainage fixture unit value for a residential clothes washer?
2
What is the drainage fixture unit value for a service sink?
2
What is the minimum trap size for a kitchen sink?
1 1/2”
What pipe size is required for a building drain carrying 200 DFU if the pipe has 1/4” per foot slope?
4 inches
What are the maximum drainage fixture units for a 6” building drain having a slope of 1/4” per foot?
840
What is the required pipe size for a vertical stack with the discharge from one branch interval carrying 18 drainage fixture units?
3 inches
What is the required pipe size for a vertical stack with the discharge from three branch intervals carrying 200 drainage fixture units?
4 inches
What is the required pipe size for a vertical stack with the discharge from 5 branch intervals carrying 1200 drainage fixture units?
6 inches
What is the minimum depth of a sump pit for a sewage ejector?
24 inches
Fill in the blank:
The discharge line connection from a sump or ejector to a horizontal drainage pipe shall be located not less than ______ pipe diameters from other stacks or drains.
10
What is the largest drain size that can be replaced by pipe-bursting methods?
6 inches
What is not a concern that indirect waste connections are designed to protect devices and appliances from?
malfunction
Fill in the blank:
Food handling equipment and fixtures shall discharge through an indirect waste connection by means of ______.
an air gap
Fill in the blank:
Floor drain located in walk-in refrigerators shall discharge through an indirect waste connection by means of ______.
an air gap
Fill in the blank:
The discharge from commercial dishwashers shall discharge through an indirect waste connection by means of ______.
either air gap or air break