First, understand your enemy. A stopcock is simply a valve that shuts off your home’s main water supply. Think of it as the “mute button” for your plumbing. If you don’t know where yours is, go find it now—before a pipe bursts and your living room becomes an indoor swimming pool. Everyone has one, usually under the kitchen sink, in a dark, cobwebby corner, or behind a box of forgotten pasta from 2019.
Surprising fact: Some British homes have stopcocks made of actual lead or brass from the Victorian era. If yours looks like a prop from a pirate movie, it’s time for a change.
