What is a common sign that a water pipe might be leaking?

Water stains on ceilings or walls are a common sign that a water pipe might be leaking because they indicate that moisture has penetrated the surface material. When a pipe leaks, water can escape and accumulate, leading to discoloration, stains, or even bubbling in the paint or drywall. These stains often appear as brown or yellow patches, and they can help identify the location of the leak.

Other signs, while potentially related to water issues, may not be as directly indicative of a leak. For example, dry walls might suggest there is no water issue at all. The odor of dampness could signal moisture problems, but it doesn’t always confirm that a leak exists at a specific location. Rusty fixtures may indicate corrosion but can also arise from other factors unrelated to a leak. Thus, water stains are a more specific and clear indicator of a potential leak in water pipes.