Help with cleaning silver clad.

[RON (PA)]

My silver clad is not coming clean. When I take it out of the tumbler, it is just as dirty as when I put it in. I never mix pennies and silver together. I have tried tumbling for 30 and 60 minutes without any change. I use the following recipe:

tap water
sand
aquarium gravel
splash of ammonia
2 drops of dish soap.

If anyone can give any suggestions on what to try, I'm all ears. Thanks in advance.


Ron

PS. I use the same recipe for my pennies and they are usually clean after 30 minutes.

 

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[Goes4ever]

I tumble my dimes, quarters and nickels with a SOS pad with soap on it, for about an hour, just coverd with water, rinse old water out, refill with clean water, add a TBS of sand, little dish soap, and tumble for an hour, they come out pretty clean