One of the reasons that cause a bathtub drain to gurgle when flushing the toilet is air stuck in the pipes. Using a plunger will remove the air in the pipes, drains, and even unclog the toilet. This is an easy and quick method to sort your plumbing issue without involving a plumber.

Why do I hear water in my tub drain when I flush the toilet?

When the toilet is flushed, the rush of water into the sewer is pulling air through the tub drain causing the gurgling noise. First, make sure the plumbing vents extend above the roof. In cold weather, simply run hot water to the sinks and look outside to see if steam is coming out of the roof vent pipes.

Are bathtub and toilet drains connected?





Your bathtub and toilet drain down separate pipes until they reach the main sewer line, which is the primary pipe to which all drains in your house lead. Eventually, all the drained materials mix and are forced out of your home through one line: the sewer main.

How do you unclog a toilet that’s backing up into the bathtub?

How to Unclog a Toilet That’s Backing Up Into the Bathtub

  1. Close the tub drain or have a helper block it while you plunge the toilet. …
  2. Clear the blockage with a toilet auger if plunging has no effect. …
  3. Find a cleanout fitting if you can fully extend the auger into the toilet without encountering resistance.

Will Drano unclog sewer line?

Bust a Sewer Clog With Enzyme-Based Drain Cleaner

It’s hardly ever a good idea to put Drano or a similar product in the toilet because it contains sodium hydroxide, which generates heat and can damage the pipes.

Can a sewer line unclog itself?





2. Call a Plumber. It’s technically possible to clear out some small sewer line clogs yourself, but this is rarely advisable. The problem with DIY repair is that the majority of sewer line clogs are caused by broken pipes, tree roots and other issues deep within your plumbing system.

How do you know if your main line is clogged?

Here are a few signs that it’s your main line that’s clogged.

  1. Multiple slow-running drains. If more than one drain is running slow, it’s probably not a coincidence, but an indication that one clog is causing issues for all of them. …
  2. Water backing up into other drains. …
  3. Gurgling sounds. …
  4. Sewage odors coming from the drains.

How do you unclog a main sewer line without a snake?

All you need to do is take a cupful of baking soda and pour it down the drain. Consequently, pour a cupful of white vinegar down the same drain. Thereafter, wait for around 10-15 minutes for the baking soda and vinegar solution to break up and clear the clog.