Waste Vent In Attic

Water running through these pipes tends to create a suction behind it and that suction can be.

Waste vent in attic.

Notice how the main vent and waste pipe remain separated behind the sink only connecting via the attached went pipe. Only two plumbing set ups could require sewer pipes in the attic. The vent pipes remove or exhaust sewer gases and allow air to enter the system so that the wastewater flows freely. As the water runs down proper venting is required to avoid a vacuum from being created.

Waste is produced at fixtures such as toilets sinks and showers. These empty into larger waste pipes that connect to the sewers. There are 3 vents in one area and 2 in another. Vent pipes look like sewer pipes.

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. I have a customer that we are doing some work in the attic for and i noticed yesterday that the plumbing is vented up into the attic phew and not thru the roof. The drainpipes are made of cast iron galvanized pipe copper or plastic. The drain waste vent system everyone knows what drain and waste pipes are but not everyone understands the function of the vents.

Extra info on the air admittance valve. I see situations around like this sometimes. The first would be a bathroom or kitchen in that part of the house and the other would be a. The waste pipes remove water and material from the toilet.