Consider the 'Replumb Method' for Copper Supply Lines

What happens here

For copper (not corrugated) toilet supply lines, the video briefly introduces an alternative approach called the "replumb method." This technique involves using specialized pliers, specifically Knipex Cobras, to grip the copper pipe near the compression fitting. The idea is to then wiggle the copper pipe back and forth while simultaneously pulling it gently outwards, aiming to dislodge the copper ferrule from the compression nut. However, the presenter explicitly states that they personally have "never get this to do it," implying it's a difficult or often unsuccessful method for them. This method would typically be used to remove an old copper line and ferrule without cutting the pipe, preserving the valve for a new compression connection.

Goal: Attempt to remove a copper ferrule from a compression fitting.