Look, I'm a lawyer. I'm not going to tell people here they should or should not replace every valve, fitting and line all the way to the black pipe every time they replace a water heater or furnace. I know it isn't done. Maybe that's the best practice and I leave that to professional installers. But putting a warning on manufacturer's packaging or manuals doesn't mean "you will have no defense in a law suit" if you don't follow. The average lawn mower manual has 50-100 warnings and you can't mow your lawn without violating at least a dozen of them.Originally posted by cem-bsee
every time one installs a fastener or connector, it is stressed, perhaps even gaulded. because of this, it is quite difficult to predict or measure just how well a remade connection was done.
the connectors on flex tubing are not as heavy as with rigid pipe, so are susceptable to less abuse.
I have reused many flex pipes for a cooking range and for a gas fired clothes dryer -- several times, but then, I had no extra liability.
As a contractor, if you violate a device manufacturer's instructions, you void any listing by an agency like UL, and you will have no defense in a law suit, and no insurance coverage --