I am attempting to make a batch of CS but having little (NO) success.

I can't figure out what I'm doing wrong, maybe the power supply?

Silver provided by 2 .999 pure US dollar coins (recent vintage - not the old 
coin silver kind)

2 quarts distilled water

aquarium pump to keep things moving.

And,
the power supply is a transformer  with the plug removed and leads
attached to the silver rounds.    It provides 6V of direct current at
2000 ma.

I have run this setup for about 16 hours, but the water still reads to show 1 
ppm.

I'm assuming I need to use a different power supply.  Suggestions?

Thanks.   Steve Grover