Ever wonder what a p-trap is?

So, I’m going to assume you’ve heard plumber’s talk before. Ever wonder what a p-trap is? In plumbing a U, S or J shaped pipe is located below or within a plumbing fixture. these bent pipes prevent sewer gasses from entering into buildings. The most common of these pipes in homes is the p-trap. It is  installed under most household sinks. Because of it’s shape, the trap retains a small amount of water. The water creates a seal that prevents sewer gas from entering your home. essentially all plumbing fixtures including sinks, tubs and toilets must be equipped with an internal or external trap. Ever accidently drop something down the sink drain and have to disassemble the p-trap to get it out?