When the wastewater exits the fixture it flows through a trap.
Sewer trap on roof.
It also allows fresh air into the plumbing system to help water flow smoothly through the drain pipes however no water runs through the plumbing vent pipe.
Of course there are many variables involved in a clogged sewer trap situation.
The trap is typically u s or j shaped and always contains water.
When a large volume of water enters a plumbing drain pipe it pushes air in front of it towards the sewer or septic tank.
It is a vertical pipe attached to a drain line and runs through the roof of your home.
Are roof vent pipes sewer gas exhaust pipes.
This air must be replaced and it is sucked into the plumbing system through the roof vents.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.
The vent stack is the pipe leading to the main roof vent.
The roof vent is designed to remove sewer gas and regulate air pressure in your home s pipes.
Clogging may happen due to simple problems such as accumulation of dirt improper sloping from incorrect vent installation broken pipe or a broken sewer trap itself.
A drainpipe attached to the p trap goes into an opening in the wall.
Trap water inside preventing sewer gases from coming back into the house.
When sewer traps need service or you need expert advice.
Vent pipes on the roof are intake vents not exhaust vents as most people believe.
Drain pipes take the wastewater to the soil stack.
Through the stack sewer gases are carried up to the roof through vent lines.