Problems with either or both of the interior drain pipes and the exterior sewer system are among the causes of a toilet backing up into a shower.
Toilet backing up into tub septic system.
There are three parts to a septic system.
The holding tank that acts as a bacterial chamber that breaks down solids.
If all building drains are slow or clogged or if waste is backing up into the building from the lowest plumbing fixture you would suspect the sewe line is blocked or there is a failing or blocked onsite waste disposal system septic system.
If sewage odors are wafting as the sewage leaks your system is really backed up this time.
The water in your toilet bubbles or rises after you run the bathroom sink.
The reason why water is backing up in the tub when you flush your toilet is simple.
This may be a toilet in a downstairs bathroom or a washing machine drain in the basement.
Without a route to the main sewer system or septic field wastewater may have nowhere to go but to back up into your fixtures or up through floor drains.
A full tank will overflow back into the lowest drains in the house.
The small amount of rainwater that gets through the outside of your septic tank causes it to overflow and flood water back into your home.
Make a visual inspection of your septic system but don t just look at what is superficial.
There are lines or pipes running from your toilet sink and tub that work through gravity to carry waste outside to the tank.
Run the water in the sink closest to the toilet for about a minute.
If the water draining out of the washing machine causes the toilet to overflow or backs up into the tub or shower it s a good sign the sewer drain is clogged.
If is slow draining then your septic system is backed up.
Inspect your yard and look for wet spots.
When your washing machine drains the toilet overflows or water backs up in the tub or shower.
You notice the unmistakable and unpleasant smell of raw sewage coming from your drains.
Blockage in drain pipes may be removed using plumbing augers to snake out the clogs.
If the toilet bubbles gurgles or the water level in the toilet rises you may have a clogged sewer line.
There s the disposal field that distributes liquids to be absorbed into the ground.
Water backing up in your shower or tub after flushing your toilet.
The main drain backup in.
Our client left is pointing to a leaky clamp patch on a building drain line.
Plunging toilets and removing blockage from p traps won t resolve the issue of a toilet backing up into a shower.
Now that that s out of the way the more important issue is what to do about it and that might depend on whether your waste pipes empty into a municipal sewage system or into a septic system.
If they back up as well.
Check the pipelines d box and drain field.
The leaking wastewater reaches the surrounding soil of the septic area as well aside from backing up into your home.
The bubbling is due to air trapped in the plumbing system.
The sewer line is blocked.
Have your septic tank pumped out as soon as possible.