All the vents connect to it through branch lines and it vents the main toilet the most important plumbing fixture in most houses.
Roof soil stack vent.
The main vent is stack is often but not always a continuation of the soil stack which is a 3 or 4 inch waste pipe that extends vertically down from the uppermost bathroom to the sewer.
A yoke vent is any pipe that connects upwards from a soil stack or vertical waste stack to a higher location in order to prevent pressure changes in the stack pipe.
A vent stack serves two facilities to the soil and waste stack.
A soil vent pipe svp also known as a soil stack pipe drain waste vent or ventilated discharge pipe is typically a vertical pipe that removes sewage and greywater from a building it is often attached to the exterior of a building although it may be fitted internally and connects the subterranean drainage system to a point just above the level of the roof gutter.
The soil pipe also known as the vent stack or stack pipe provides air for the plumbing system.
Within the last 15 years or so the latest soil vent pipe regulation have been so that the rodding point is fitted above the ground so that there is access to clearing or unblocking the soil stack.
Upc 2006.
The main stack is the heart of the venting system.
Through traps all fixtures are connected to waste lines which in turn take the waste to a soil stack or soil vent pipe.
To get rid of this situation a vent stack is provided connecting both soil stack and waste stack.
Depending on your region the vent stack may protrude only a few inches above the surface of the roof.
At the building drain system s lowest point the drain waste vent is attached and rises usually inside a wall to and out of the roof.
Rain water stack rws.
One is to allow air to the soil and waste stacks and another is to remove odor gas from the stacks.
Form the name of this stack you already get the idea what.
In the past there has been blockages and no way to get the machine down to unblock.