You’re all set to hop in the shower, but suddenly, you hear an odd gurgling sound coming from the toilet. Curious, you lift the lid and discover what looks like a bubbling witch’s cauldron. You wonder, “Why is my toilet bubbling when the shower is running?”
Discover the cause of your bubbling toilet in this guide, then call us for top-ranking plumbing services in Chesapeake, VA.
Why Is My Toilet Bubbling When the Shower Is Running?
Your toilet could be bubbling for any number of reasons, from an air pressure imbalance to improper cross-venting. We discuss the most common cause of a bubbling toilet below.
Blocked Plumbing Line, Drain Line Obstruction, or Sewer Line Clog
Normally, air flows through your plumbing pipes, but if there’s a clog, the air moves the wrong way and causes water to bubble. If that bubbling is happening in your toilet, chances are good that there’s a clog in the bathroom plumbing. You can usually fix the clog with a plunger or drain snake.
If you notice bubbling elsewhere in your home or water backing up in multiple sinks, you likely have a clog further down the main drain or sewer line. This is a problem you can’t fix by yourself. If the issue is happening in the municipal sewer lines, you can call the City of Chesapeake to fix it.
Vent Blockage
If you were to climb a ladder and take a peek at your roof, you’d see a vertical pipe called a vent stack. The vent stack is responsible for maintaining air pressure and releasing exhaust gas from your pipes.
However, if the vent pipe is blocked, that gas has nowhere to go except back inside your plumbing. In addition to bubbling, you might notice a foul sewage smell and water backing up around the house.
Vent pipes commonly become blocked by tree leaves, bird nests, and even dead animals. If you’d rather not scale your roof to remove the blockage, call a plumber.
Sediment Buildup in the Tank
If you’re wondering, “Why is my toilet bubbling when the shower is running?” take a look inside your toilet’s tank. Hard water contains minerals, such as calcium and iron, that can build up and calcify in the tank over time. Should that happen, you might hear gurgling when you run the shower or after you flush the toilet.
You can get rid of this buildup with a descaling product, but unless you address the root cause, it’ll come back again. You might consider installing a water softener to nix the problem for good.
Defective Flapper
In every toilet, you’ll find a flapper. This small, unassuming part fills up your tank again when you flush the toilet. If it’s broken, then your toilet may bubble.
Fixing a faulty flapper is pretty simple if you’re handy with basic repairs, and you can pick up a new flapper at any local hardware store. Not comfortable working on your toilet? Call our pros for help.
Poor Plumbing Installation
Sometimes, bubbling in the toilet isn’t caused by a clog or mineral buildup but rather by faulty installation. Perhaps the plumber you hired didn’t seat the toilet properly, for instance, or maybe the previous homeowner did some DIY plumbing work that wasn’t up to code.
If this is your problem, you’ll need to call an expert plumber to find a solution. That might involve repiping your house, but at least you can stop asking, “Why is my toilet bubbling when the shower is running?”
How To Fix a Bubbling Toilet in Chesapeake
First things first, ask your neighbors if they’re having plumbing problems, too. If they are, the problem is likely located in the municipal sewer lines, and you’ll need to call the city for a fix.
If your neighbors deny having similar plumbing woes, start with basic troubleshooting. Try plunging the toilet (if water is backing up in your shower, you can plunge that too).
Open the toilet lid and check for sediment buildup. If you don’t see any, inspect the flapper for damage.
Still got a bubbling toilet? There’s probably a mainline backup or some other problem further down your plumbing line that you can’t fix yourself. Our top plumbers can help with that, so give us a call.
Stop Wondering “Why Is My Toilet Bubbling When the Shower Is Running?” Call Our Pros in Chesapeake Today!
If your toilet won’t stop bubbling when the shower runs or your AC is frozen, give Hats Off Heating and Air Conditioning in Chesapeake a call. You’ll love our flat-rate pricing, award-winning plumbers, and speedy service, guaranteed.
