A common and costly mistake that many tend to commit is assuming that using more plumber's tape — also known as Teflon tape or PTFE (polytetrafluoroethylene) tape — ensures a better seal.

Teflon tape goes by many names, including plumber's tape and PTFE tape. No matter what you call it, the stretchy, smooth material is a handy helper for fixing minor plumbing issues. The waterproof ...