Your toilets aren’t properly vented. When you flush the toilet you’re forcing air movement in the sewer/drain line. This air movement is causing the splash or gurgle in the other toilet.

Why does one toilet lose water when another is flushed?

You’ve got a venting issue and there’s not enough air getting into the waste line that’s probably feeding both toilets. And so, as a result, when you flush one, you cause a draw on the other that pulls the water out.

What would causes the toilet bowl water level to drop?





In the case of your toilet water levels, when pressure shifts within the pipe system, the water in the toilet bowl is consequently affected. With a decrease in pressure within the pipes, there is a suction effect. The toilet water is pulled to this area of low pressure, and as a result, water levels drop.

Can one clogged toilet affect another?

It’s highly unlikely that the blockage transferred from one toilet to the other. If your septic waste line is on a septic tank and leach field you may need to have it emptied. If you are continually clearing blockage in your main septic line then you might want to consider having a plumbing service clear the main line.

Why does my downstairs toilet bubble when the upstairs toilet is flushed?

Your problem is the distance the water/waste is falling. To eliminate the bubbling a vent would need to be added or an up flow valve after the basement toilet prior to entering the main line. Up flow valves are like a check valve to prevent lower floors from having this problem.

How do I know if my sewer line is clogged?

Signs Your Sewer Line May Be Clogged

  1. Dark Water. One of the signature symptoms of a main-drain clog is water backing up in your tubs or showers. …
  2. Slow-Moving Drains. Take a minute to think about the drains in your home. …
  3. Gurgling Sounds. …
  4. Clogged Plumbing Fixtures. …
  5. Turn Off the Water. …
  6. Call a Plumber.




How do I get rid of an airlock in my toilet?

How to Remove Air From Toilet Plumbing

  1. Step 1: Fill the Toilet Bowl. Fill the toilet bowl halfway. …
  2. Step 2: Apply a Toilet Plunger. …
  3. Step 3: Plunge the Toilet. …
  4. Step 4: Use an Auger. …
  5. Step 5: Turn Off the Water Supply. …
  6. Step 6: Remove the Toilet. …
  7. Step 7: Replace the Toilet.

Can a gurgling toilet fix itself?

Can a Gurgling Toilet Fix Itself? It is possible the gurgling sounds go away on their own if the drain clog clears itself or you remove any debris from the vent stacks on the roof. If the issue lies in your main sewer line, you’ll need the help of professional plumbers.

How do you unclog a sewer line?



Your step-by-step guide: How to clear a main sewer line clog

  1. Loosen the cap on the drain pipe. …
  2. Allow any sewer buildup to come out of the drain. …
  3. Gently feed the auger cable into the main line drain. …
  4. Run the auger until the clog is broken up. …
  5. Hose out leftover debris. …
  6. Pull the auger cable back out of the main line drain.

Can you put Drano in a toilet?

You can use Drano® Clog Removers to unclog a kitchen sink, bathroom sink, shower or clogged bathtub, but DO NOT use them in toilets. For clogged or slow-running drains, apply the product and let it work 15 minutes, then flush with hot water. For tough problems, allow 30 minutes before flushing.

Can a full septic tank cause gurgling?



Septic tank needs to be pumped: When your septic tank is too full, gurgling noises will be common with any plumbing fixture or element you use. The tank will be unable to drain, blocking the sewer lines from flowing as they should. You may also notice sewage seeping from the ground or a strong odor outside your home.

What are signs of septic tank problems?

Signs of Septic System Failure

  • Water and sewage from toilets, drains, and sinks are backing up into the home.
  • Bathtubs, showers, and sinks drain very slowly.
  • Gurgling sounds in the plumbing system.
  • Standing water or damp spots near the septic tank or drainfield.
  • Bad odors around the septic tank or drainfield.

How often should a septic tank be pumped?

every 2-5 years

How often should you have your septic tank pumped? You should clean your septic tank every 2-5 years depending on how many bedrooms you have in your house as well as the local regulations.

What does it cost to have a septic tank drained?



Typically, a homeowner will pay between $250 to $500 for a septic system pumping. Sometimes, a homeowner can save money by preparing the area for the septic tank technician. For example, the homeowner can ensure the tank access port is cleared for the technician.

How long does a septic tank last?

Steel septic tanks have a life expectancy of 15 to 20 years. These should not be used for new installations but can still sometimes be found in older rural properties. Plastic (PE) or fiberglass tanks (GRP) have a life expectancy of 20 to 30 years.

Can I use bleach if I have a septic tank?

The short answer is no. Pouring most kinds of household bleach and chemical cleaners down your drain and into your septic tank is likely to cause all kinds of problems for your septic system.