Forum Discussion
Chris_F
May 06, 2013Explorer
I suspect it's aluminum oxide, the corrosion product from an aluminum anode rod.
Got any left? If it's calcium scale, calcium carbonate, it will dissolve in vinegar and fizz like an Alka-Seltzer tablet. Aluminum oxide also will dissolve in vinegar, but it won't fizz.
Got any left? If it's calcium scale, calcium carbonate, it will dissolve in vinegar and fizz like an Alka-Seltzer tablet. Aluminum oxide also will dissolve in vinegar, but it won't fizz.
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