Waste
What is the minimum size of a stack that can go through the roof?
3 inch
The softening agent used to soften water is called?
Brine
The term "solvent weld" applies to what type of material?
Plastic
Hard drawn copper tubing one-inch or smaller when installed horizontally shall be supported every how many feet?
8 feet
True or false? All shower valves should have a temperature balance control?
True
The minimum size for a gravity underfloor building drain line is?
4 inch
Water which is safe for people to drink and cook with is referred by code as ________ water
Potable
The maximum developed length for any indirect waste of any sanitary waste line shall not exceed how many feet?
5 feet
What is the minimum length an air chamber for a fixture should be?
12 inches
True or false? A residential dishwasher may discharge directly into a food waste disposal unit?
Fasle
A common cause of trap seal loss in a plumbing fixture trap due to siphonage is?
A clogged vent pipe
Are push-on angle stop valves allowed by code in Illinois?
Yes
The total number of water closets that may be installed on a three inch vertical stack is?
2 per interval
Non potable water piping shall be permanently marked or identified by a distinctive color, so that the piping is easily distinguished from potable water piping, what color should it be?
Purple
No shower stall or receptor for a single family house shall have a finished outside dimension which is less than?
32 inches
The minimum size vent allowable by the Illinois plumbing code is?
1 1/4 inch
What is the minimum water supply service pipe for any building?
3/4 inch
What is the minimum size vent for a water closet?
2 inches
The minimum constant water service pressure on the discharge side of the water meter must be at least how many psi?
20 psi
What must be installed at a water heater when their are fixtures below it?
A vacuum breaker
Plastic pipe, when installed horizontally, shall be supported at intervals not to exceed
Four-feet
Below what temperature is considered cold water?
85 degrees Fahrenheit
A cleanout shall be provided at no more than _______ from the base of a stack?
4 feet
The maximum temperatures of any water discharging into any part of the drainage system is?
180 degrees
Adding a backflow device to water supply system creates what type of system?
Closed system