A clogged vent pipe.
Vent pipe on roof clogged.
If tree branches hang over your roof trim them back.
This blockage keeps air from traveling up the vent pipe properly.
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.
Clogged vent pipe symptoms.
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.
If removing the trap improves the flow from any nearby fixtures that have been draining more slowly than usual the vents are probably blocked.
There s another piece of your plumbing system that could be to blame.
Going up on a roof is dangerous especially when you re trying to search for the cause of a clog.
You know the black plumbing pipes that stick up out of your roof.
Start by trying to clean the roof vent and main drain with a hand held drum auger.
Your plumber may need to access the blockage through the vent on the roof pushing a plumbing auger down through the system to grab onto the offending material and pull it out.
Because most drain vent pipes are up near the roof sometimes debris from the roof can even clog a pipe.
Though you may have success clearing a clogged drain yourself stoppages will continue to occur if a blocked vent is the culprit.
Slow draining and gurgling plumbing fixtures could be a sign of a clogged roof vent.
Climb the roof with a garden hose and spray water.
Keep your vent clear.
Bird s nests debris and rodents are all known culprits for clogging vent pipes.
The vent system those plumbing pipes that stick out of your roof may be clogged instead.
This long pipe is called a plumbing vent sewer vent plumbing stack vent or roof vent.
Vent pipes allow air into the plumbing line to balance the pressure in the pipe as water goes down the drain.
When the vent pipe is clogged it shows up within your home in a variety of ways from ghost flushing from your toilet to a sink that won t drain properly.
When a plumbing vent pipe or vent stack is blocked negative pressure builds up in drainage pipes and water flow is interrupted.
Clogs can also form at the 90 degree or t joint in your pipes where the pipe from your sink drain or toilet joins your main sewer line inside your walls.
Sometimes these clogs comprise materials like wet wipes and feminine hygiene products which homeowners commonly flush even though they are really not designed to go down the drain.
If your plumbing vent pipe gets clogged regularly there may be other factors involved.
When wet leaves and other debris get stuck inside your vent pipe it doesn t take long before there s nowhere for the air to go.
The vent pipe can also be blocked and when this is the problem your plumbing system will not function as it should.
Bird or rodent carcasses.
