One tire down, one to go. Had to run between my home office n garage 10 times to keep the bucket filled and to relieve the pressure that builds up.
It's a really simple process. You remove the valve stem, attach a hose adapter and hose, connect to small pump then put it in large container. The pump will fill until the tire pressure builds too high. Then simply unplug pump. The air pushes back thru the pump and vents in the container. Then plug it in again. Repeat until water comes out of stem rather than air.
I was really concerned about breaking the bead. I jacked up the rear just enough to take the tires off the ground - not wanting anything to push against the bead with little/no pressure in the tires. Turned out to be a non-issue.
If I was to start over again I would get a bigger pump. The one I purchased was only 1/6hp. A 1/4 or 1/3 would be a better choice.