I bought a couple of ‘Thumler’s tumblers’ vibratory donut polishers
once upon a time. (reloader’s tumblers) (The big ones, #UV-45)
I then bought a ‘replacement’ flow-thru bowl for Rio’s big expensive
(red) donut polisher. The bowl was identical, right down to the mould
marks. All they’d done was add a set of NPT fittings to get the water
in and out. The only tricky part was that the bottom fitting had a
sort of linear grate over it to keep the media from jamming it up.
Worse-come-to-worse, you could probably use nylon or teflon screen
over a plastic 1/8" NPT nipple fitting, and be just fine. (I bought
one of theirs just to see what they’d done. Having seen it, I
wouldn’t buy another one. Just frankenform one of your existing
I used them for a couple of years with two wet, and one dry. Worked
great. I even had a big ‘gang’ water tank that’d feed the wet ones,
and they both drained into the same settling tank. Rigged it with a
float switch to pump the water up to the upper tank every so often,
so I didn’t fry the pump by running it 24/7.
The wet tumblers lived on a rack that held them about 3 feet off the
floor. The ‘fresh’ water tank was above them, and the settling tank
was below. When the level in the upper tank got down to a certain
point, that’d trip the pump to fill the tank back up. When it got up
to a certain point, that’d switch the pump back off.
I’d go get the details, but they’re in a crate 3000 miles from me at