Tom Brady

Any ideas what to do if compounding, using a microfiber blue/white pad, isn't removing the water spots? I spent a couple of hours trying to do my trunk - I got out the swirls, some nasty surface defects, but the water spots / etching isn't moving - and they're visible in normal light, don't need a focus on them to see them. I've seen people using 2:1 diluted acid wheel cleaner, and it looks like they wipe right off - but of course I don't have any available to try. The other option appears to be wet sanding the area - which I really would like to avoid if possible. I really don't see much information online about what to do with compounding fails to remove water spots - so I'm assuming this is pretty uncommon, but if anyone has any ideas I'd love to hear them. Thanks!