Rock Tumbler cleaning coins

i use aquarium gravel myself. I have a lot if you need. I got at a garage sale. PM me if you need and I will send free of charge. Us forum members have to take care of each other.
 
Clr....

What is your magic formula? Is it simply CLR, or do you include anything else? Also, I worry about how the CLR might interact with the rubber "innards" of tumbler?
 
Just put in coins and whatever until 2/3 full. Add water until almost covering the stuff and add a few drops of dish detergent. No real ratio needed. The coins are grinders too. Don't pour the slurry down the drain.

I have tried most of the suggestions made including what Stevo says above and that works about the best for me. I made a tumbler that will take 3 or 4 pounds of coins in one batch. Took me parts of 3 days to clean up $600 worth of coins last winter. A fraction of what it took me other years.

Jerry
 
Best way

I have tried everything in my tumbler to get the coins as clean as possible, and I can tell you their is only one way I have found to do this the right way and to clean them to the best they be cleaned. I use rocks that I picked off the ground little and big, now here is the part that will work I promise. Go to the grocery store and buy a big box of S.O.S (steel wool) pads with the soap in it already then cut off a little piece of the steel wool (S.O.S) throw it in the tumbler withe the rocks and some water let tumble for about 1 or 2 hours, and you will be amazed how clean they come out. You can use as big as a piece as you want depending on how many times you want to go to the grocery store.
 
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