Canadian Plumbing Regulations

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Questions and Answers

Who has the authority to enact legislation regarding plumbing systems in Canada?

Provincial and territorial governments (correct)

The CCBFC committee

The Canadian Plumbing Association

The National Research Council of Canada

What is the purpose of the NPC?

To create a national law for plumbing systems

To punish violators of plumbing codes

To regulate the design and installation of plumbing systems

To promote consistency among provincial and territorial plumbing codes (correct)

Who is responsible for the content of the National Model Codes?

The CCBFC committee (correct)

The Canadian Plumbing Association

The National Research Council of Canada

The Provincial and territorial governments

What should persons involved in the design or installation of plumbing systems do?

Consult the provincial or territorial jurisdiction concerned Signup and view all the answers

What is the CCBFC committee made up of?

Volunteers from across the country and from all facets of the Codes-user community Signup and view all the answers

What is the relationship between the 2015 edition and this edition of the NPC?

This edition succeeds the 2015 edition Signup and view all the answers

What is the purpose of the Standards Council of Canada?

To coordinate voluntary standardization in Canada Signup and view all the answers

What is the National Standards System (NSS) in Canada?

A network of accredited organizations concerned with standards development, certification, testing and inspection Signup and view all the answers

Who accredits standards development organizations in Canada?

The Standards Council of Canada Signup and view all the answers

What is the role of the Canadian Commission on Building and Fire Codes?

To receive comments or suggestions on building and fire codes Signup and view all the answers

Who develops the National Plumbing Code of Canada?

The Canadian Commission on Building and Fire Codes Signup and view all the answers

What is the purpose of the National Plumbing Code of Canada?

To set standards for plumbing systems in Canada Signup and view all the answers

Who is the chair of the Technical Translation Verification Committee?

G.Harvey Signup and view all the answers

What is the copyright year range for the National Plumbing Code of Canada 2020?

1941 - 2022 Signup and view all the answers

What is the title of Part 1 of the National Plumbing Code of Canada 2020?

Compliance, Objectives and Functional Statements Signup and view all the answers

Who resigned from the Committee on September 23, 2016, due to an employment opportunity with Codes Canada?

S.Veilleux Signup and view all the answers

What is the title of Division A of the National Plumbing Code of Canada 2020?

Compliance Signup and view all the answers

What is the section number of the 'Application of this Code' in the National Plumbing Code of Canada 2020?

1.1.1 Signup and view all the answers

What is a sanitary drainage pipe?

A pipe that conducts sewage Signup and view all the answers

What is a service water heater?

A device for heating water for plumbing services Signup and view all the answers

What is a stack in a sanitary drainage system?

A vertical sanitary drainage pipe that passes through one or more storeys Signup and view all the answers

What is sewage?

Any liquid waste other than clear-water waste and storm water Signup and view all the answers

What is a storm building drain?

A building drain that conducts storm water and is connected to a leader, sump or catch basin Signup and view all the answers

What is a storey?

The interval between two successive floor levels Signup and view all the answers

What is the purpose of Sentence 1.5.1.1.(1) in the NPC?

To exclude unrelated provisions from referenced documents in the NPC Signup and view all the answers

What happens when a referenced document contains references to other documents?

Only the provisions related to plumbing systems are considered Signup and view all the answers

What are the objectives and functional statements attributed to in Division B?

Plumbing systems and referenced documents Signup and view all the answers

What is the relationship between the NPC and referenced documents?

The NPC incorporates relevant provisions from referenced documents Signup and view all the answers

What is the purpose of Division A in the NPC?

To establish objectives and functional statements Signup and view all the answers

What is excluded from the NPC according to Sentence 1.5.1.1.(1)?

Provisions unrelated to plumbing systems or objectives Signup and view all the answers

What is the primary function of a relief vent in a drainage system?

To provide additional air circulation between the drainage system and the venting system Signup and view all the answers

What is the primary difference between a residential full flow-through fire sprinkler/standpipe system and a residential partial flow-through fire sprinkler/standpipe system?

The flow of water during inactive periods Signup and view all the answers

What is the purpose of a roof drain in a drainage system?

To permit storm water to discharge into a leader Signup and view all the answers

What is the function of a sanitary building drain in a drainage system?

To conduct sewage to a building sewer from the most upstream stack, branch or fixture drain serving a water closet Signup and view all the answers

What is the definition of a riser in the context of drainage systems?

A water distribution pipe that extends through at least one full storey Signup and view all the answers

What type of floor drain is defined as a fixture?

One that is installed to receive discharge from specific equipment Signup and view all the answers

What is the term for the situation where water can be drawn from a bathtub or water closet into the water system when the pressure in the water system is low or the water supply has been shut off?

Back-siphonage Signup and view all the answers

What is the purpose of a differential relief valve in a backflow preventer assembly?

To prevent backflow into the potable water supply Signup and view all the answers

What is the term for the level above which water can flow out of a fixture, such as a bathtub or water closet?

Flood level Signup and view all the answers

What is the purpose of a check valve in a backflow preventer assembly?

To allow flow in one direction only Signup and view all the answers

What is the primary purpose of an emergency floor drain?

To prevent flooding in a building due to pipe or fixture failure Signup and view all the answers

What type of water supply is maintained in potable condition in Class 3 fire sprinkler/standpipe systems?

Public potable water supply Signup and view all the answers

What is an example of clear-water waste?

Waste water from a drinking fountain Signup and view all the answers

What is the primary difference between a Class 3 fire sprinkler/standpipe system and a Class 1 fire sprinkler/standpipe system?

The source of water supply Signup and view all the answers

What is the primary function of a floor drain in a drainage system?

To drain waste water from a building Signup and view all the answers

What is the main purpose of a stack vent in a sanitary drainage system?

To vent the top of a stack to outside air Signup and view all the answers

What type of waste is excluded from the definition of sewage?

Clear-water waste Signup and view all the answers

What is a storm building sewer connected to at its downstream end?

A building sewer or a designated storm water disposal location Signup and view all the answers

What is a storage-type service water heater characterized by?

An integral hot water storage tank Signup and view all the answers

What is the interval between 2 successive floor levels, including mezzanine floors that contain plumbing fixtures?

A storey Signup and view all the answers

What is the name of the assembly of pipes, fittings, fixtures, traps, and appurtenances used to convey sewage, clear-water waste, or storm water to a public sewer or a private sewage disposal system?

Drainage system Signup and view all the answers

What type of vent pipe serves 2 fixtures and connects at the junction of the trap arms?

Dual vent Signup and view all the answers

What is the purpose of an emergency floor drain?

To provide overflow protection Signup and view all the answers

What is excluded from the definition of a drainage system?

Subsoil drainage pipes Signup and view all the answers

What is the term for a pipe that terminates with a closed fitting?

Dead end Signup and view all the answers

What is the term for the vertical distance between the trap dip and the trap weir in a drainage system?

Trap seal depth Signup and view all the answers

What type of pipe is installed underground to intercept and convey subsurface water in a drainage system?

Subsoil drainage pipe Signup and view all the answers

What is the highest part of the lower interior surface of a trap in a drainage system?

Trap weir Signup and view all the answers

What is the term for a pipe that connects any combination of stack vents or vent stacks to outside air in a drainage system?

Vent header Signup and view all the answers

What is the lowest part of the upper interior surface of a trap in a drainage system?

Trap dip Signup and view all the answers

What is the primary function of a venting system in a drainage system?

To circulate air and protect trap seals in the drainage system Signup and view all the answers

What is a vent pipe that is connected at its upper end to a vent header or terminates in outside air?

Vent stack Signup and view all the answers

What is the term for a sanitary drainage pipe that also serves as a vent pipe?

Wet vent Signup and view all the answers

What is the purpose of a vent pipe in a drainage system?

To circulate air and protect trap seals Signup and view all the answers

What is a pipe that conveys water from a public water main or private water source to the inside of a building?

Water service pipe Signup and view all the answers

What is an assembly of pipes, fittings, valves, and appurtenances that conveys water to water supply outlets?

Water distribution system Signup and view all the answers

What is the term for a private water supply system, a water service pipe, a water distribution system, or parts thereof?

Water system Signup and view all the answers

What is the primary function of a vent header in a drainage system?

To connect a vent stack to a drainage system Signup and view all the answers

What is the term for a pipe that conveys water from the water service pipe to water supply outlets?

Water distribution pipe Signup and view all the answers

What is the primary purpose of a venting system in a drainage system?

To circulate air and protect trap seals Signup and view all the answers

What is the purpose of a building drain in a drainage system?

To collect and convey sewage from the building to the public sewer Signup and view all the answers

What is a characteristic of a branch in a sanitary drainage system?

It is connected at its upstream end to the junction of 2 or more sanitary drainage pipes or to a stack Signup and view all the answers

What is a branch vent in a drainage system?

A vent pipe that is connected at its lower end to the junction of 2 or more vent pipes, and at its upper end, either to another branch vent or to a stack vent, vent stack or vent header, or terminates in open air Signup and view all the answers

What is a bathroom group in a drainage system?

A group of plumbing fixtures installed in the same room, consisting of one domestic-type lavatory, one water closet and either one bathtub (with or without a shower) or one one-head shower Signup and view all the answers

What is the purpose of a building sewer in a drainage system?

To connect a building drain to a public sewer or private sewage disposal system Signup and view all the answers

Study Notes

Plumbing Terms and Definitions

Relief Vent: A pipe enhancing air circulation between the drainage and venting systems.
Residential Full Flow-Through Fire Sprinkler/Standpipe System: Integrates with potable water to provide water flow through all components in one- or two-family dwellings.
Residential Partial Flow-Through Fire Sprinkler/Standpipe System: Channels water primarily to the furthest water closet during inactive sprinkler periods.
Riser: A vertical pipe extending through at least one full storey for water distribution.
Roof Drain: A fitting allowing storm water discharge from the roof into a drainage leader.
Roof Gutter: Exterior channel at the slope base of roofs for storm water conveyance.
Sanitary Building Drain: Conducts sewage from fixtures to the building sewer.
Sanitary Building Sewer: A pipe specifically for sewage transport.

Plumbing Code Information

Backflow Preventers: Assemblies like differential relief valves preventing back-siphonage and protecting potable water.
Emergency Floor Drains: Designed to prevent building flooding from pipe or fixture failures.
Drainage System: Assembly of pipes and fittings that conveys sewage, clear-water waste, or storm water to a sewer or disposal system.
Trap: Device holding liquid to prevent gas passage without impacting liquid flow.

Water Distribution and Systems

Water Service Pipe: Conveys water from public mains or private sources into a building.
Water Distribution System: Network of pipes, fittings, and valves delivering water to various fixtures and appliances.

Fire Protection Systems

Class 3 Fire Sprinkler/Standpipe Systems: These systems maintain potable water supplied from the public water supply.

Venting and Pressure Systems

Stack Vent: Connects the top of a stack to vent headers or outside air.
Dual Vent: Serves two fixtures, connecting at the opportune junction of trap arms.
Wet Vent: A sanitary drainage pipe that also serves as a vent, linking downstream and upstream fixture connections.

Compliance and Regulations

The National Plumbing Code of Canada (NPC) regulates plumbing design and installation across provinces/territories, promoting consistency in plumbing codes.
CCBFC: A committee responsible for developing the NPC, consisting of various building and engineering professionals.

Additional Definitions

Storm Water: Water resulting from rainfall or snowfall runoff.
Building Drain: The lowest pipe conducting waste products by gravity to the building sewer.
Building Sewer: Pipe leading away from the building drain to a public sewer or sewage disposal system.

Important Considerations

Back-siphonage can occur in older buildings if fixtures are improperly filled above designated safety levels.
Emergency systems and codes are established to ensure public safety and plumbing integrity during failures.

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Description

Learn about the role of provincial and territorial governments in regulating plumbing systems in Canada, including the adoption of the National Plumbing Code (NPC) and other local laws. Understand the requirements for professional involvement and consistency in plumbing system design and installation.