- Access Chamber
- Accessible
- Air Break
- Air Gap
- Authority
- Backflow
- Backpressure
- Backsiphonage
- Backwater Valve
- Black Water
- Building Drain
- Building Sewer
- Building Subdrain
- Check Valve
- Cistern
- Cleaning Eye
- Colour Marking
- Combined Building Drain
- Combined Building Sewer
- Conservation
- Corrosion
- Cross-Connection
- Disinfection
- Downpipe or Downspout
- Drain
- Drainage System
- Drain Cock
- Dual System
- Electrolysis
- Fixture
- Fixture Unit
- Flammable Waste
- Float Valve
- Flushometer Valve
- Frost Protection
- Grease Interceptor
- Grease Trap
- Green Water
- Greywater
- Indirect Connections
- Industrial Waste
- Inspection Chamber
- Interceptor
- Liquid Waste
- Manhole
- Mixing Valve
- Negative Pressure
- Non-Return Valve
- Oil Trap
- Overflow System
- pH
- Plumbing Fixture
- Potable Water
- Pressure Reduction Valve
- Pressure Relief Valve
- Reclaimed Water
- Roof Drainage
- Safe or Potable Drinking-Water
- Sanitary Building Drain
- Sanitary Building Sewer
- Sanitary Sewer
- Sewage
- Sewer
- Sewerage
- Sewer System
- Stop Valve
- Storm Drain
- Storm Water Drainage
- Subsoil Drain
- Temperature and Pressure Relief Valve
- Trap
- Vent
- Waste
- Wastewater
- Water Closet
Plumbing Terminology
