Traps are the J-shaped devices connected to the bottom of sinks and bathtubs. The most common type, installed under most house sinks, is referred to as a "P-Trap." They retain about a cup of water in ...
Connected to the bottom of your sink you will find a J-shaped device called a "trap." A trap retains about a cup of water that blocks sewer gas from moving from the drain system into the house via the ...