Just wondering if anyone knows a good way to get rid of water spots that have built up. I'm using Meguiar's NXT liquid wax but when I'm done buffing I can still see water marks in the right light. Suggestions?

 

clay bar....

 

yep the clay bar it works wonders.

 

If it's surface residue, clay will generally work. Also white vinegar left to soak a few minutes. If that doesn't work, try a scratch remover.

If it looks concave (like a depression), it's probably due to hard water droplets or acid rain that were hit by the sun or otherwise caused the paint to get etched. A scratch remover may help minimize them, but some such water spots, if extreme, will never come out unless you hit so deep you start removing the clearcoat -- and then you've got other problems, so be careful.

Good luck!