The vent pipe opening from the horizontal wet vent except for water closets and similar fixtures shall not be below the weir of the trap.
Roof vent filled with water.
But if it still seems to work dont worry too much about it.
When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.
Most air vent styles prevent direct intrusion of water.
If your sewer vent is filled with debris your plumber may remove it using a special grabbing tool.
Atmospheric venting refers to a system in which exhaust from the water heater naturally rises out of the appliance s combustion chamber then travels up through a standard chimney style flue.
And on occasion a hard driving rain with whipping wind will cause roof vents to leak water.
It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.
Do you notice a gurgling noise when you flush the toilet or run water down the sink.
These vents come with a damper to prevent backdraft and removable screen and with or without a stem for flex or hard pipe connections.
But some roof air vents sit fairly flat to the roof with a mushroom style hood and unprotected sides.
908 2 4 water closet the water closet fixture drain or trap arm connection to the wet vent shall be downstream of fixture drain or trap arm connections to the horizontal wet vent.
Climb the roof with a garden hose and spray water into the main vent opening.
Turn the water on before you bring the hose onto the roof.
There might be a bird nest in there.
Then the vent pipe may be re angled and a new cap may be put into place to keep debris from clogging it again.
The water in the vent line can basically close the vent off.
The bk roof vent is designed for use with bathroom or kitchen venting systems.
Condensation and rain water from the vent going out the roof.
If so that is the problem.
If this is the vent pipe then it is plugged somewhere where it connects to the rest of the system.
If its pvc its no big deal it will never rot away.
The pipe lets air in to prevent this.
You could put a hood cjhimmney like cover on your stack going out the roof to keep the water from collecting.
Look inside the vent opening and clear out any debris you find.