One or more of the following can collect in a vent line and completely clog it.
Roof vent and wall cleanout.
Step 1 look up on the roof from the ground below and locate the vent pipe s position.
Start by trying to clean the roof vent and main drain with a hand held drum auger.
If a blockage develops in the soil stack you can clear it from the roof.
And on homes that do not have a main drain cleanout accessing a clogged main drain through the roof vent could be your best option.
Brass cleanout plugs shall be utilized with metallic drain waste and vent piping only and shall conform to astm a 74 asme a112 3 1 or asme a112 36 2m.
This isn t really my field but if the roof is difficult to work from then installing a wye fitting with a cleanout adapter and plug in the attic is a good way to be able to snake down from the wye.
You know the black plumbing pipes that stick up out of your roof.
A drain needs an open airway for water to go down properly.
It needs to be vented.
The vent goes up through the roof and the waste water goes down to the sewer or septic system.
Cleanout plugs shall be brass or plastic or other approved materials.
When a vent becomes clogged it shows up within the home as everything from ghost flushes at the toilet to sinks that simply won t drain properly.
Slow draining and gurgling plumbing fixtures could be a sign of a clogged roof vent.
The vent opening doesn t give you access to waste lines for individual fixtures however.
Most of the time there is a t intersection from the drain line to the sink.
A drainpipe attached to the p trap goes into an opening in the wall.
Drain pipes take the wastewater to the soil stack.
Set up an extension ladder so you.
The top of the vent pipe extends through the roof.
Disconnect the dryer duct.
So here s the deal.
Cleanouts with plate style access covers shall be fitted with corrosion resisting fasteners.
Birds usually deceased but sometimes nesting.
It doesn t cover the vent pipe above the fitting.
If any shingles are covering the vent or the screws that attach to the guard peel back the shingles.
Once you have safely ascended onto the roof examine the area around the vent guard.
Peel back shingles that obstruct the vent on the roof.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.
Pull the dryer out from the wall unplug it and disconnect the duct pull the dryer out from the wall.
Unplug it and if it s a gas dryer turn off the gas valve as well.