Vibrating Cleaning Media?

[Wannabe Treasure Hunter]

I just recently acquired a Used Gy-Roc "B" Vibrating Cleaner/Polisher.
If you use one of these or any other Vibrating Cleaner/Polisher what Media do you use for basic cleaning of Dug Coins?

Also for anyone that owns one of these and needs a replacement Belt a BUNA 230 O-Ring works great & if you swing by Ace Hardware they carry one but you'll have to get them to look it up by size because they do not have a Buna cross-reference.

2 1/2" ID x 2 3/4" OD x 1/8" Cross Section.

 

[qtrs-xcite-me]

I tried cleaning coins in my vibrator and did not like the result. Tried a couple of different media but don't remember which ones. Instead I switched to a tumbler with aquarium gravel and 1/4 tsp of powder detergent and distilled water. Very happy with the results. I know I never tried aquarium gravel in the vibrator, so you might want to try that first.