I know it can lead to corrosion and premature failure. It was probably done to prevent vibration, but this was new construction and I’m surprised any plumber would have done this.
Anyone else finding this?
Maybe they just wanted to bond the ductwork!:roll:
Maybe this picture should be sent to a Plumbers national union for posting on their web site. I can imagine that the resourcefull plumber believes he found a revolutionary new anchoring method.