Waste Vent In Attic

In modern plumbing a drain waste vent or dwv is part of a system that allows air to enter a plumbing system to maintain proper air pressure to enable the removal of sewage and greywater from a dwelling.

Waste vent in attic.

The drainpipes are made of cast iron galvanized pipe copper or plastic. Vent pipes look like sewer pipes. I see situations around like this sometimes. The waste pipes remove water and material from the toilet.

As the water runs down proper venting is required to avoid a vacuum from being created. The first would be a bathroom or kitchen in that part of the house and the other would be a. 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. Water running through these pipes tends to create a suction behind it and that suction can be.

Waste is produced at fixtures such as toilets sinks and showers. Notice how the main vent and waste pipe remain separated behind the sink only connecting via the attached went pipe. These empty into larger waste pipes that connect to the sewers. The vent pipes remove or exhaust sewer gases and allow air to enter the system so that the wastewater flows freely.

The drain waste vent system everyone knows what drain and waste pipes are but not everyone understands the function of the vents. This revert is at least six inches above the overflow line and properly connected with a drainage t. There are 3 vents in one area and 2 in another. Drain pipes are those connected to fixture p traps.