Q: My concrete sidewalk and driveway have large brown rust stains that I haven’t been able to remove. I tried bleach and a chemical remover to no avail. Can you help? A: Rust stains on concrete seem ...

Do you remember asking the classic question in high school chemistry class, “When will I ever use this?” I admit that I was one who posed this question loud enough that I was rewarded with an ...

Every week, readers reach out to me with fantastic questions about a column of mine they have just read. Often they ask why I didn’t delve deeper into the topic. The answer is that newspapers – the ...