P-trap of sink drain.
What is a P-trap:
One of the more mysterious pipe fittings to newcomers in the world of home plumbing is the p-trap. This fitting has a very specific function and though it is often the source of many common plumbing problems, you would not want to live without it. Your bathroom sink p-trap is a small, u-shaped piece of pipe in the cabinet connected to... Read full guide »