Wrapping PTFE tape counterclockwise causes it to unravel when you thread the fitting on. Always wrap clockwise (when looking at the thread end face-on), 3-5 wraps for standard connections. For gas lines, use yellow PTFE rated for gas per UL 181. White tape is for water only. This is one of the most common apprentice mistakes and it causes callbacks.
Sign in to join the conversation.
This insight is user-generated content for informational purposes only. It is not professional advice. Always consult a licensed professional before acting on information related to trades, health, finance, or any field where incorrect application could cause harm. KnowBoar assumes no liability for actions taken based on this content. Full terms.