It has this residue on it that ive resorted to just scraping it off with an exacto blade. What would this stuff be?? It was a used tank. Second, I used cleaners, allll kinds of cleaners, despite warnings not to, but there was just so much GRUNGE that I felt I HAD to try something. I thought it may be calcuim deposit, even tried CLR. Didn't work.
How many times should I rinse this before starting my cycling to guarantee there is no cleaner residue? I want to be safe.
How many times should I rinse this before starting my cycling to guarantee there is no cleaner residue? I want to be safe.