Defined Terms

Front 1

Continuous Vent

Back 1

Vent pipe that is an extension of vertical section of a BRANCH or FIXTURE DRAIN

Front 2

Critical Level

Back 2

Level of submergence at which the back siphonage preventer ceases to prevent back siphonage

Front 3

Developed length

Back 3

Length along center line of pipe and fittings

Front 4

Directly connected

Back 4

Connected in such a way water or gas cannot escape

Front 5

Dual Vent

Back 5

Vent pipe that serves 2 fixtures and connects at the junction of the trap arms

Front 6

Details of Emergency floor drain

Back 6

-fixture with zero fixture units

-no separate vent

-18” min trap arm

-12” minimum trap arm on 3” Trap

Front 7

Fixture Drain

Back 7

Pipe that connects a trap serving a fixture to another part of drainage system

Front 8

Fixture outlet pipe and max length

Back 8

Pipe that connects waste opening from fixture to the trap.

Max 1200mm

Front 9

Fixture unit

Back 9

Unit of measure based on rate of discharge, time of operation and frequency of use that expresses hydraulic load of that fixture.

Front 10

Flow control roof drain

Back 10

Roof drain that restricts the flow of storm water into the storm drainage system

Front 11

Fresh air inlet

Back 11

Vent pipe that is installed in conjunction with a building trap and terminated odours.

Front 12

Sanitary building drain

Back 12

A building drain that conducts SEWAGE to a BUILDING SEWER from the most upstream SOIL OR WASTE STACK, BRANCH or FIXTURE DRAIN serving a water closet.

Front 13

Size

Back 13

The Nominal Diameter of which a pipe/fitting /trap is commercial designated

Front 14

Soil or waste stack

Back 14

Vertical soil or waste pipe that passes through one or more stories

Front 15

Stack vent

Back 15

Pipe that connects the top of a soil or waste stack to a vent header or to outside air.

Front 16

Storage type water heater

Back 16

A service water heater with an integral Hot water storage tank.

Front 17

Trap Dip

Back 17

Lowest part of the upper interior surface of a trap

Front 18

Trap seal depth

Back 18

Vertical distance between the trap dip and trap weir ( min 11/2”)

Front 19

Vacuum breaker or Back siphonage preventer

Back 19

Device that prevent back siphonage

Front 20

Waste distribution system

Back 20

Assembly of pipes . fittings , valves, appurtenances that conveys water from water service pipe or private water supply to water supply outlets, fixtures, appliances , etc.

Always located inside building downstream of meter.

Front 21

Water service pipe

Back 21

Pipe that conveys water from a public water main or private source to the inside of a building.

Outside of building , upstream of meter.

Front 22

Indirect service water heater

Back 22

A service water heater that derives its heat from a heating medium such as warm air, steam or hot water

Front 23

Wet vent

Back 23

Soil or waste pipe that also serves as a vent pipe and extends from the most downstream wet vented fixture connection to the most upstream fixture connection.

Front 24

Yoke Vent

Back 24

A vent pipe that in connected at its lower end to a soil and waste stack and at its upper end to a vent stack or to a branch vent connected to a vent stack.

Front 25

If you give up you are an

Back 25

*******

Front 26

Air admittance valve

Back 26

One way valves designed to allow air into enter a drainage system when the pressure in the plumbing system is less than atmospheric

Front 27

Air Break

Back 27

Unobstructed vertical distance between lowest point of an I directly connected soil or waste pipe and the flood level rim of the fixture into which it discharges.

Front 28

Air Gap

Back 28

Unobstructed vertical distance through air between lowest point of a water supply outlet and flood level rim of a fixture.

Front 29

Back pressure

Back 29

Pressure higher than supply pressure

Front 30

Backwater valve

Back 30

Check valve designed for use in a gravity drainage system

Front 31

Branch

Back 31

Soil or waste pipe connected at its upstream end to the junction of 2 or more vent pipes or to a soil and waste stack and connected at its downstream to another branch, a sump, a soil and waste stack or a building drain.

More than 1 fixture running through.

Front 32

Branch vent

Back 32

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 into open air.

Front 33

Individual vent

Back 33

Vent pipe that serves one fixture

Front 34

Building drain

Back 34

Lowest horizontal piping , including any vertical offset, that conducts sewage, Clear water waste or storm water to a building sewer.

From 1m outside building to the furthest water closet.

Front 35

Building trap

Back 35

Trap installed in building drain or sewer to prevent circulation of air between drainage system and a public sewer.

Front 36

Check valve

Back 36

Valve that permits flow in one direction from prevents return flow

Front 37

Circuit vent

Back 37

A vent pipe that serves a number of fixtures and connects to the fixture drain of the most upstream fixture

Front 38

Leader

Back 38

Pipe that is installed to carry storm water to storm building drain, sewer or other place of disposal.

Front 39

Nominally Horizontal

Back 39

An angle of less than 45 with the horizontal

Front 40

Nominally vertical

Back 40

At an angle of not more than 45 with the vertical

Front 41

Offset relief vent

Back 41

A relief vent that provides additional air circulation upstream and downstream of an offset in a soil or waste stack

Front 42

Relief vent

Back 42

Vent pipe that is used in conjunction with a circuit vent to provide additional circulation between a drainage system and a venting system

Front 43

Riser

Back 43

Water distribution pipe that extends through at least 1 full story

Front 44

Roof gutter

Back 44

Exterior channel installed at the base of a slopes roof ( evestroph)