Clogged Drain Vent ^hot^ -

Birds, squirrels, or rodents may use the vent for shelter and become stuck or build nests inside.

Storm damage or corrosion in older cast iron pipes can lead to internal collapses. How to Unclog a Plumbing Vent Symptoms of a Clogged Drain Vent Pipe | Drain Maintenance clogged drain vent

It’s the vertical pipe that runs from your plumbing system up through your roof. It doesn’t carry water—it carries air . Its job is to equalize pressure so water can flow freely down your drains and to vent sewer gases safely outside. Birds, squirrels, or rodents may use the vent

Reduced air pressure can siphon water out of toilet tanks or bowls. Why Do Drain Vents Get Clogged? It doesn’t carry water—it carries air

If water doesn't work, use a plumber’s auger (snake). Feed the snake down the vent pipe until you feel resistance. Crank the handle to break through the blockage, then retract the snake. Run the hose again to flush away the remnants.