This makes good sense, and possibly the carbon laying between the steel and copper layers might add to the corrosion too. I did some quick research and found this article: http://www.worldstainless.org/Files/...h_Other_EN.pdf
See page 12 regarding using copper fittings on Stainless Steel pipes and tell me (us) what your thinking is. I'm no metallurgist so I'm genuinely interested. I've not done my best to rid my barrels of copper during each cleaning, so I may be missing the boat by no doing so. I do use a camera to look inside so I am able to confirm my cleaning methods will get it all.
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