YES !!!!!!!! Minimum 2" P Trap Yes, and it needs a wye not a tee, and it needs to be vented properly.
The basement is the level in your house below ground level. To say it another way, you would be below the ground if you were in a basement.
It may be sitting in the trap which should be located directly below the drain.
One or more floor of a building that are completely below the ground floor is basement. A floor of a building that is half below ground, rather than entirely such as a basement is semi basement.
Basement/cellar.
A basement of a house is the room or space that is below ground level. A basement appliance that can heat your house is a furnace.
A cellar (or basement) is below the ground level of a house or building.
The book is located on the table below the window.
In horses the pancreas is located directly below the stomach (ventral to the stomach). It's connected to the first part of the small intestine (the duodenum).
Cellar Basement
It is called a basement
Iowa is directly below Minnesota.
"Basement" in Spanish is "sótano". It is pronounced "SO-tah-no". Please see the Related link below for confirmation of the translation.