Install a one way check valve in the line from the house to the sewer.
Yes, it will do that. It is also unsanitary. You should have your floors professionally cleaned.
If the existing sewer line is lower than basement grade (does it go into the basement floor and out of the house?) you can just connect in to the existing drain. By code, sewer lines must have a slope of 1/4 inch per running foot, meaning that raw sewage will run AWAY from the main plumbing stack of the house. If the sewer line is ABOVE the level of the basement plumbing fixtures, you will need to purchase and install a pump check-valve, and tank to install any plumbing below the house sewer line. If you have any questions, contact a licensed plumber to find out the needs of your home.
You hire a plumber to put in a one way sewer drain valve.
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.
You can easily find the main sanitary sewer trap by locating the fresh air inlet which is located no more then 4 feet behind the building house trap. It will be 1/2 the size of the main sewer but in no case less then 3" and 12" above grade min.
Frozen sewer out side
A sewer smell in your basement when it rains could indicate a problem with your sewer system or plumbing. It could be due to a damaged sewer pipe or a blockage causing sewer gases to seep into the basement. It is important to have a plumber inspect and address the issue to prevent any further damage or health hazards.
there is a blockage in your sewer line
An ejector pump is a tool used usually in basements when the sewer fails to flow beneath the basement floor. Basically the function of this tool is to pump water so that the sewer in the basement could work continually.
3" house (building) drain allowable. 4" building sewer line needed for house from sewer main.
A little more detail about the sitsuation would help. New construction, remodel, sewer outlet in the house to street or sewer outlet in house to main going out of house.