Yes, Teflon tape, also known as PTFE tape, can effectively stop water leaks when properly applied to threaded pipe connections. Teflon tape is commonly used in plumbing applications to create a watertight seal between threaded fittings, such as those found in water pipes, faucets, showerheads, and other plumbing fixtures.

When wrapping Teflon tape around the male threads of a fitting before screwing it into the female threads, the tape fills in the gaps and creates a tight seal that helps prevent water from leaking out of the connection. This sealing action is particularly effective in low to moderate pressure applications.

It’s important to apply the Teflon tape correctly to ensure its effectiveness in stopping water leaks. This typically involves wrapping the tape around the male threads in a clockwise direction, overlapping the layers slightly, and ensuring that the tape is snugly pressed into the threads.

While Teflon tape can be an effective solution for stopping water leaks in threaded pipe connections, it’s essential to consider the specific circumstances and conditions of the plumbing system. In some cases, particularly in high-pressure or critical applications, additional sealing methods or products may be necessary to ensure a reliable and long-lasting seal.