We are always here for our customers, and one question we often get is; “Why is my toilet bubbling?” The bubbling in your toilet bowl is one of the odd behaviors that toilets might display that point to a potential issue. Although gurgling in your toilet might seem unimportant, it could be a sign of something more serious. You should address the problem as soon as possible because even minor symptoms may point to a major issue that will require a more extensive plumbing service to fix. Here are a few of the most typical plumbing problems that could cause your toilet to make bubbling and gurgling noises.
Blocked Sewer or Drain Lines
A bubbling toilet typically indicates some sort of problem, generally a clog, in the drain pipe connecting your toilet to your sewer. When a clog prevents water from flowing down your drain as quickly as it should, bubbles may occasionally form in air pockets or gaps in the pipe. When these air pockets or gaps are filled with water or other liquid, the bubbles travel back up the drain line and cause the bubbling you hear in your toilet.
This issue can be resolved using standard plumbing techniques. You can either snake your drain, which entails using an auger to physically remove the blockage to open the drain line by reaching down the drain. Clogs can also be cleaned using a technique called “hydro jetting” if they are further down the drain line but still reachable through an access cover. If you’re still asking why is my toilet bubbling, then continue reading. We have another possibility for you to consider.
Unable to Vent Stack
Have you ever hurriedly attempted to pour milk or water from a plastic gallon jug? It never disperses evenly or smoothly. Instead, until there is enough liquid to pour out, it typically sputters, sloshes, and alternates between speeding up and slowing down. The liquid in the jug prevents air from entering the area it has vacated behind it, which results in a natural vacuum and causes this occurrence.
Your plumbing is susceptible to the same effect, but in these circumstances, it is even more difficult for the air to reenter and eliminate the vacuum. Because of this, plumbing codes mandate that every drain in your house have a vent stack that services it. Frequently, a single vent stack serves a number of separate drains. The drains will slow down and make an odd gurgling sound as the water drains away, yet, if this stack becomes blocked, air can’t enter to relieve the vacuum.
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