Drain Vent In Attic. True vents also have no water running through them. Sometimes it might be in your yard. A full sized vent is a primary vent where the drain line transitions at some point and becomes the vent pipe that exits the roof.
If the toilet drain does not connect directly to a vent you must find another way to vent it. If you smell sewer gas in your home that means either a trap has run dry or a vent line has cracked.
Why plumbing air vents are important.
Pipes on your roof. Venting is critical to the operation of a residential or commercial plumbing system. It helps maintain proper atmospheric pressure in a building s waste system and channels the exhaust gasses to the vent. Sometimes it might be in your yard.
