I have a small but persistent leak in a bathroom faucet. After removing faucet covers, exposing stems, but not loosening anything: turn on cold water, see water leaking on hot water side, and vice versa. I replaced the hot water washer but the problem remains. I have not replaced the cold water washer because I'm afraid of breaking something because, after a few turns, in the process of loosening it, the bolt becomes very tight again and I don't want to force it for fear of causing a larger problem than the simple, leak which, if necessary, I can live with, although it is annoying. Any advice would be greatly appreciated. (And if I can help anyone with regard to questions about branded food buying in supermarkets, Ask Away!!)