From the roof slowly feed an inspection camera down the vent stack.
Inspect for clogged roof vent.
Professional plumbing companies can inspect vent lines and confirm whether your suspicions are warranted.
Feed the end of a garden hose down the vent pipe and have someone on the ground turn on the water.
Climb the roof with a garden hose and spray water into the main vent opening.
Use a flashlight to shine a bright light down the vent pipe to look for further blockage you can reach.
That s a sign that you need to clear the vent pipe with a plumbing.
Spray water into the vent opening.
They can use specialized plumbing tools such as augers to break through the blockage restoring the vent line s function.
If your vent line is obstructed plumbers have several options they can use to resolve the problem.
Bring a garden hose onto the roof and adjust the nozzle to the jet setting.
Watch the monitor until you see an obstruction.
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.
Sometimes a clogged vent will require a professional plumber to open up the walls of your home to get a good look at your drainage system.
Because most drain vent pipes are up near the roof sometimes debris from the roof can even clog a pipe.
If the main vent is blocked the water will back up.
Then try the following.
Remove any items you can reach.
That may be enough to clear the vents but if it isn t water will fill them and.
If you can see but can t reach run a plumber s snake down the vent pipe.
For those items you can t remove from above run the plumber s snake down the vent pipe.
Have someone inside the house flush the toilet while you watch the monitor.
Slow draining and gurgling plumbing fixtures could be a sign of a clogged roof vent.
Bird s nests debris and rodents are all known culprits for clogging vent pipes.
Start by trying to clean the roof vent and main drain with a hand held drum auger.
Insert a 12 foot long electrician s probe down.
Still if a blockage is in place you have two options.
Steps to unclog a drain from the roof get yourself up on your roof using a ladder that is properly secured remove the vent pipe cap if required inspect the inside of the vent pipe with a bright flashlight grab the debris if you can see it and test your pipes if you can t see the clog grab your.