Code
The National Plumbing Code states that water must reach this temperature to be considered "Hot".
120 degrees
This is the maximum allowable feet between outside clean-outs in a residential sewer main line.
100 feet
The heat potential of a substance is called _____ heat.
Latent
A device or valve installed in the building drain or sewer pipe where a sewer is subject to backflow, and which prevents drainage or waste from backing up into a low level or fixtures. (IPC)
Backwater valve
The amount of Btus in 1 ton of cooling.
12,000
This is the temperature air must be to be considered "Standard Air" as defined by International Mechanical Code.
70 degrees
A tank or pit that receives sewage or liquid waste, located below the normal grade of the gravity system and that must be emptied by mechanical means.
Sump
This is the measure of Latent Heat.
British Thermal Unit
This is defined as "the unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging" (IPC)
Air Gap
This is the year Gibson's became a company.
1983
The maximum spacing between pipe supports for PVC in a horizontal application according to International Mechanical Code.
4 feet
The minimum slope per foot for drain pipe from 3-6 inches according to International Plumbing Code.
1/8 of an inch
A small flame that is utilized to ignite the gas at the main burner or burners.
Pilot
This is the minimum outlet diameter for a sink drain. (IPC)
1 1/2 inches
Pressure on the high pressure side of a mechanical refrigeration unit is called
discharge or head pressure
It's the clearance distance for single wall flue pipe from combustible material on a residential gas boiler.
9 inches
This is the minimum diameter of the outlet for a floor drain. (IPC)
2 inch diameter
The amount of cubic feet per thousand Btu/h needed when drawing combustion air from a room.
50
Gas fired water heaters are prohibited in sleeping rooms, bathrooms or closet areas accessed through a sleeping room or bathroom. This type of gas water heater is the exception to that rule.
Direct vent water heater
The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or an increase in pressure. (IFGC)
Condensate
The maximum spacing allowed between supports for PEX piping in a horizontal application according to International Mechanical Code.
32 inches
This chemical based connection method is prohibited when joining two different types of plastic pipe together for a drainage system. (IPC)
Solvent joint
The opening in a cap, spud or other device whereby the flow of gas is limited and through which the gas is discharged to the burner.
Orifice
This is the minimum distance (in inches) required between the front of a water closet and any wall, fixture or door. (IPC)
21 inches
When running a tracer wire for an underground line in Allen County, this size of solid copper wire is required.
10 gauge