Plumbing Systems and Related Works

Plumbing Systems and Related Works

Plumbing Systems constitute work with the following:- • Water supply pipes • Fixture – A device that uses water (sink, toilet, dishwasher, etc.) • Soil, waste, and vent pipes • Drain and sewer • Gas pipes • Storm water drainage Water Supply Systems are made up of the following main components:- • Water Main – Supply pipe installed and maintained by a public entity and on public property • Water Service – Pipe from the water main to the building supply pipes • Meter – Measures the amount of water transported through water service • Valve – A fitting used to control water flow (located next to the meter) Among the Network of pipes that transport hot and cold potable water under pressure are:- • Fixture – A device that uses water (sink, toilet, dishwasher, etc.) • Water Heater – Large insulated tanks that heat cold water to be distributed in the hot water supply lines • Trunk Lines – Hot or cold water pipes that serve many fixtures • Branch Lines – Hot or cold water pipes that serve only one or two fixtures Drain-Waste-Vent System Network of pipes that transport wastewater and sewer gases from the building • Drain Pipe – A pipe that carries wastewater in a building • Vent Pipe – A vertical pipe that provides circulation of air to and from the drainage system • Trap – A fitting (usually U-shaped) that provides a seal to prevent the flow of sewer gases • Stack – A vertical pipe (waste or vent) that extends through at least one story • Cleanout – An access opening to allow cleanout of the pipe Drain-Waste-Vent System • Sewage – Any liquid waste containing animal or vegetable matter, including liquids containing chemicals • Sanitary Sewer – A sewer pipe that carries only sewage • Storm Sewer – A sewer pipe that carries storm water or other drainage (but not sewage) • Building Sewer or Sewer Lateral – Part of the drainage system from the building to the public, private, or individual sewer disposal system • Sewer Main – A sewer pipe installed and maintained by a public entity and on public property Supply pipe size is always dependent upon • Amount of water • Water pressure • Pipe length • Number of stories • Flow pressure necessary at farthest point in system