Video- Me? I am too shy. Not really, but just not into videos. Besides, there's nothing to it. I run a whole bunch of water through the chamber and out the stem. Sometimes I get the whole pipe wet, sometimes not. Sometimes the finish needs buffing, sometimes not. In all cases, I now take that opportunity to wipe down the stem well, something I've too long neglected.
As to a pipe swelling due to a hot water rinse, nonsense, unless the mortise-tenon gap is large and it's not dried, say with a Q-tip. Much more moisture is introduced during a smoke at a much higher temperature- that's what makes wood swell if it does.