Ask a builder: Getting rust stains off a concrete floor

Q. How can I remove rust stains from a concrete floor? Mrs. L. C. Hardwick Jenkintown, Pa.

A. Go to a well-stocked commercial janitorial supply store and buy any one of several commercial rust cleaners that have a phosphoric-acid base. Follow the labeled directions explicitly.

If necessary, use a full-strength application, followed by a clean-water rinse.

If no local store has the designated rust cleaner, write for one made by the ProSoCo Co., Inc., P.O. Box 4437, Kansas City, KS 66104.

We want to hear, did we miss an angle we should have covered? Should we come back to this topic? Or just give us a rating for this story. We want to hear from you.