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.
The purpose of a basement sewer trap is to prevent sewer gases from entering a building. It functions by creating a water seal that blocks the gases from passing through the plumbing system and into the building.
Common issues to watch out for with a sewer trap in the basement include blockages, leaks, and corrosion. These issues can lead to sewage backups, foul odors, and potential health hazards. Regular maintenance and inspections are important to prevent these problems and ensure the proper functioning of the sewer trap.
The purpose of a basement floor drain trap is to prevent sewer gases from entering the home. It functions by holding water in a U-shaped bend in the pipe, creating a barrier that blocks the gases from coming up through the drain and into the house.
A trap doesn't cause the blockage. Something IN sewer line causes a blockage.
YES !!!!!!!! Minimum 2" P Trap Yes, and it needs a wye not a tee, and it needs to be vented properly.
I'm unable to provide images or diagrams. However, a basement floor drain typically consists of a grate or cover over a pipe that allows water to flow into the drain. The pipe is connected to a trap that prevents sewer gases from entering the basement. The drain then connects to the main sewer line or a sump pump to remove the water from the basement.
Because of evaporation and lack of use. I recomend dumping some water down it to refill it, that will keep the sewer gases out aswell
Sounds like the trap in the sink is getting the water pulled out of it. It probably wasn't vented properly.
To stop sewer gasses from being expelled from the sewer
Most likely a drain has dried out and there is no water in the trap to stop the gas from coming up. Sink, shower, or main floor drain.
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.
A sump pump effectively diverts water from a basement to the sewer system by collecting water that accumulates in a sump pit, then pumping it out through a discharge pipe that leads to the sewer system. This helps prevent flooding and water damage in the basement.