So, you’re enjoying your morning shower when all of a sudden you hear a bubbling noise from your toilet.
What the heck?
Here are some possible causes:
Let’s explore each of these issues and how you can fix them.
Check out this image:
Source: Cornell University
See that drain pipe in the bottom left? If there’s a clog there, water will back up into the lowest drain, in this case that drains your toilet. That backing up of water is causing the bubbling/gurgling noise.
Causes of a clogged sewer drain line include:
If none of these worked (or you don’t want to do them yourself), you’ll need to call a plumber for help.
The vent stack is a pipe that rises from your plumbing system and out through your roof. Its job? To keep nasty sewer gas from backing up into your home and helps water in your plumbing flow smoothly.
Again, this image tells the story:
Think of this vent stack as a straw in a glass of water. As long as the top of the straw is clear, water flows freely.
But what happens If you put your thumb over the top of the straw and take it out of the water? The water stays in the straw and does not flow. It’s like magic. But not really.
Anyway, if the vent stack is blocked by, let’s say, a bird’s nest, water in your plumbing won’t flow freely and air will back up into your plumbing. That air will try to escape somewhere (In this case, your toilet).
If you’re feeling brave, get a ladder and head up to your roof to see if the plumbing vent is obstructed.
Plumbing stack vents are usually black plastic ABS or lead pipe and look like this:
The toilet trap is a curved section of the toilet's drain pipe that retains a small amount of water to prevent sewer gases from entering your home. If the trap becomes blocked by an object or excessive waste, it can cause air bubbles to appear when you flush.
Need help diagnosing this plumbing problem and want it fixed ASAP? Contact Plumbing Today for a plumbing repair.
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Posted in: Troubleshooting