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Oh, wow!!!

Thanks, Gary!!!

Well, here's how we did that...

You can see the back where we initially planned to create a Frigidaire spin-tube by mounting the spray tower horizontally under the top rack. However, we wanted to work with PVC to preserve the, um, integrity of the GE design. It's hard to create a bearing surface out of PVC, because the material is a little thermally sensitive.

So, we used the bearing for the lower wash-arm supplied by GE, and built up from there. The top is supported with a bolt and flat washer through the top of the machine, and that had to be oiled to keep it as low-friction as possible. There is a helical pattern of holes drilled in the tube, with four metal flanges screwed on at silverware-basket level and large holes drilled under them. The flanges are angled in, so that the hole allows water to shoot out, hit the flange, and fan the water outward at an angle. When it does this, the force of the exiting water results in an equal and opposite "push" on the tube, causing it to rotate. The tube would, when warmed up and moving, get going at a pretty good clip--probably about 200 RPM or so.

The racks were modified (cut top and bottom to allow the tube to pass through), and the tines bent to allow the dishes to face the tower, a la impeller dishwasher.

We used the secondary port on the pump to drive a tiny constant rinse we fashioned out of sheet metal and bolted to the roof off-center (since the spinning tower occupied the dead-center spot). It would spin slowly and send sheets of water down over the top rack.

It worked pretty well--Plexiglas door and all--but was not a capacity champ, since all dish surfaces had to face the tower.
 

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