The drain from the toilet to the main drain is plugged and the branch to the shower is not. If the main floor toilet flushes, it is between the two toilets and not between the house and the sewer.
This is due to a blockage on your main sewer line, this is an indication that it may just be starting and getting it cleared asap will be beneficial to you.
if you are fitting a maserator unit like Saniflo you can go horizontally up to 100 meters or vertically up to 4 meters but you must have a 1 in 200 gravity fall on the horizontal there is no certain distance it can be from the main. it all depends on the fall and how deep your sewer is, however it does matter how many bends your line has. It shouldn't exceed 135 degrees or 100' without a cleanout.
IF your toilet sink and washer are on the same waste line, which they probably are, the problem is't a short trap. Actually since your washer, toilet and sink have different traps it shoudn't effect anything. The problem probably comes from the washer being what is called a "sudds producing fixture". The sudds produced by your washer can actually go up either your toilet or sink waste line. By code the waste for your washer should be tied in to the sewer main 6' from where your waste line goes up for your bathroom. The only solution is to redo the piping from the sewer main and move your waste line for the washer. it won't harm anything. The worst thing that could happen is you'll get suds out of the drain in the sink
The toilet itself is plugged or the pipe from the toilet to the drain is plugged. It may be that the tub and sink have their own drain pipe that may connect to the main away from the toilet drain. Plunge the toilet or sometimes if you fill a 5 gallon bucket with water and pour it into the toilet as fast as it will take it, that will flush out the line. It is a greater amount of water all at once an forces out what the clog is.
No you don't. The trap is inside the toilet.
5 inches of drop. 1/8 inch per foot.
1/8" per foot (1% grade)
A water or sewer main is as it sounds ,It is the main feed line that runs underground usually along side a street or easement from your house or place of business to connect you to these utilities.
Firstly, you have a anti syphon problem, this is causing the drainage and the bubbles are caused by a possible blockage in your main sewer line.
It is quite possible that your main pipe to the city sewer system has become blocked somewhere between the basement floor drain and the man city sewer line. Could be a result of items flushed down the toilet(s), or damaged pipes as a result of age, tree roots searching for water, etc. Suggest having your main access to the city sewer system checked by camera.
Either they are on a separate sewer line and connect to the main sewer line later on or they sewerage is pumped by means of a machine into the main sewer line.
Not exactly a sewer main normally flows by graviety and a forced main is a pumped system
A trap doesn't cause the blockage. Something IN sewer line causes a blockage.
3" house (building) drain allowable. 4" building sewer line needed for house from sewer main.
bass
You have a main sewer line stoppage and you need to have your drain pipe roto-rootered.