Look under magnetic drive pumps. There is a chemical resistance chart, and all components and what they're made of is listed in the data sheets.
The 10% sulfuric acid line on the chart will cover all usable concentrations of anodizing electrolyte.
I think it was M_D (?) who initially had some problems, I believe he now has things sorted out. These pumps can be quickly disassembled without tools for cleaning. There was some silicone (?) grease inside as a preservative, I cleaned it out with a paper towel. You are not supposed to run these pumps dry for any length of time, that will damage them.
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