Thread: Calgon and Dawn
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Old 03-10-2012, 03:10 PM   #10
Mrs. CountryGuy
Montana Master
 
Join Date: Oct 2006
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Posts: 5,238
M.O.C. #6337
I use Calgon in gray tanks AND the black tank. I prefer the liquid.

I do NOT use Dawn in the black tank, IF I use any soap, it is liquid laundry detergent, a capful or maybe capful and half. I think I would stay away from the Dawn. Not that it is right or wrong to use it, I don't think if you used a small amount with a small amount of water, say, 3 to 4 gallons there would be too many bubbles!
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