What is the best way to get hard water marks off my glass shower enclosure? I have tried CLR and Lime-away and they lessen the problem but by no means am I left with a clean glass. If someone hadn't seen it beforehand, they'd never have imagined I'd tried to clean it at all. The glass is only 2 years old so I hope that I'm not already looking at permanent damage. Any suggestions? Thank you!

Here are 3 thangs that I have used and have worked for me. It depends on how hevy the hard water marks are though.

Oven cleaner works miracles to get off the built up gunk on shower doors. Spray, walk away, about a half hour later rinse (scrub if really built up) and then use a squeegee to get off excess .... My kids used to love "washing" the shower doors with bar soap and of course I wasn't able to get to it right away....I tried oven cleaner as a last resort and I have never tried anything else since!!!! It also works great on mildew on the tile!

Use LEMON OIL to remove hard water stains from glass shower doors. Just wipe it on and they are GONE! Always make sure area is completely free of water on any surface before using lemon oil or it will get smudgy-if this happens, just keep wiping with a dry cloth every so often til gone.

Orange hand cleaner with pumice in it. You can find it at auto parts stores or maybe Walmart. Get the stuff with the pumice in it. Apply with bare hands. DO NOT USE WATER until you are ready to rinse. You can feel the water stains and soap scum coming off and your hands will be very clean. Non toxic and smells great.