Out Of Round Tubes? Part 2

The middle of the tubes are rounder now. But, the last inches on each end are still a bit ovaled.  

Lightly squeeze the ends round. 

Hold the tube end round and again hold over the slow boiling water for a few seconds - Until you can feel the tube softening. 

Lift away from the steam while still holding the tube end round. When the tube cools it should hold the new round shape.

The absorbed steam might slightly raise a spiral seam on the outside of the tube.

Slide the couple back into the tube.

Burnish over the tube and seam with a flat burnisher.

On the left is the before -

And the same tubes after steaming and reforming. Quite a difference!

This doesn't always work! 

Like I mentioned before, if you can see cracks or the crease is sharp - You are better off replacing the tubes.