This type with a brass or copper scrubber work great: https://www.amazon.com/Soldering-Cleaner-599B-Water-free-Hakko/dp/B000AQQFMG/ https://www.amazon.com/Sold

This type with a brass or copper scrubber work great: https://www.amazon.com/Soldering-Cleaner-599B-Water-free-Hakko/dp/B000AQQFMG/ https://www.amazon.com/Soldering-Cleaner-599B-Water-free-Hak...