Working with some fitters. When installing refr. lines, especially on small diameter ones, after installing a fitting, say an elbow on the end of a line, they like to take their channelocks and pinch the fitting a little and twist the fitting on the line to keep it from falling apart before brazing.
I cringe whenever I see it, feel it distorts the clearance between the pipe and fitting and could affect the quality of the brazed joint, especially if you overdo it.
I think they do this when soldering also, which could really make it hard to get the joint filled properly.
Anybody else have a problem with this practice?
I tend to fit the pipe so it is supported properly, or there is some natural tension on the fitting in the direction of the pipe so it won't fall off easily.