The highest 4 inch pipe should have a vent on it, or directly above a toilet junction Above the flood level rim of the fixture it is servicing IT does not mean the toilet
Wiki User
∙ 15y agoIn plumbing the roof vent should be a min of 4" to prevent hoarfrost
Of course that is why any legitimate master plumber will install a vent pitching upwards from the fixtures it is serving so the condensation will flow back to the drain or in severe cases a drip leg is installed
The Fresh Air Inlet (FAI) is where the venting system starts as it draws the colder air into the system and allows it to vent through the vent terminal
Install an automatic air vent on the line
no, for health reasions,
4 " vent to prevent hoarfrost and pitch pocket around the pipe filled with bituminous material 4 " vent to prevent hoarfrost and pitch pocket around the pipe filled with bituminous material
By removing foul sewer fumes and venting them to the outside air nomally through the vent terminal knowing warm air rises
If there is no vent off the kitchen sink you would need to install an in-line vent.
A auto vent
WHICH VENT If you're talking plumbing roof vents or soffit or ridge attic air vents; absolutely not!! I can't thing of a single vent that would be opened and closed at will.
Yes BUT not an outside wall
Vent into an unused room.