history
The word “plumbing” is derived from this Latin word meaning lead.
What is plumbum?
According to IPC, potable water piping must be protected from this condition.
What is contamination or backflow?
This plastic piping material is commonly used for drain, waste, and vent systems.
What is PVC?
This vent allows multiple fixtures to be vented through a single pipe.
What is a common vent?
This fuel gas was first widely distributed in the U.S. in the early 1900s.
What is natural gas?
This civilization perfected aqueducts and indoor plumbing for public baths.
Who were the Romans?
The minimum slope for horizontal drainage piping 2 1/2 inches or smaller under IPC.
What is ¼ inch per foot?
This fitting is used to transition from cast iron to PVC or ABS.
What is a shielded no-hub coupling?
This vent pipe must terminate outdoors above the roof.
What is a stack vent?
This material is approved for underground gas piping when properly marked.
What is polyethylene (PE) pipe?
Indoor residential plumbing became common in U.S. homes during this century.
What is the 20th century?
The IPC requires every plumbing fixture to have this component to prevent sewer gases from entering the building.
What is a trap?
The IPC allows of existing DWV piping only when the original pipe is structurally sound and properly cleaned a condition met to ensure proper flow and structural integrity.
What is pipe lining?
The minimum distance a vent must be from a building air intake under IPC.
What is 10 feet?
According to the IPC, gas piping must be tested before being placed into service using this.
What is a pressure test with air or inert gas?
This invention drastically reduced waterborne diseases by safely removing waste from buildings.
What is the water closet (flush toilet)?
The IPC requires drain and vent piping to be installed so that this feature remains accessible for inspection and maintenance.
What are cleanouts?
According to IPC principles, PVC DWV piping must be protected from this condition to prevent brittleness and failure over time.
What is ultraviolet (UV) exposure?
Under the IPC, this type of vent may be used to allow air into the drainage system but cannot be used to release sewer gases outdoors.
What is an air admittance valve (Studor vent)?
This formula is used to calculate gas pipe size based on BTUs and length.
What is the longest-length method?
In the late 1800s, this public health concern in the United States to prevent the spread of disease and illness from sewer gas led to the requirement for.
venting plumbing system
Under the IPC, this device is required when plumbing fixtures are installed below the elevation of the next upstream manhole or sewer connection.
What is a backwater valve?
This material is prohibited by the International Plumbing Code for DWV piping because it degrades and poses health and fire risks.
What is orangeburg pipe?
Under the International Plumbing Code, when designing a vent for a horizontal branch serving multiple fixtures, the pipe size must be based on this cumulative measurement of all fixtures connected to the branch.
What is the total drain fixture units (DFU)?
A typical natural gas water heater rated at 40,000 BTUs will require approximately this many cubic feet of gas per hour.
What is 40 cubic feet per hour?