Stop That Leak! The #1 Mistake DIYers Make With Pipe Thread Tape (And How to Do It Right)

Think plumbing is just twist-and-go? You’re not alone. Whether you're fixing a leaky faucet or replacing a water heater line, wrapping pipe threads with Teflon tape (aka plumber’s tape) seems simple—until it leaks, bursts, or clogs.

Too many DIYers think “more tape = better seal.” But that common assumption can do more harm than good. Let’s break down the most frequent Teflon tape mistakes, how to avoid them, and what actually works to keep those fittings leak-free.