What is a good way to deal with hard water stains?

I'd love nothing more than to wash my mustang at my house.. but we have hard water here and it left some horrible stains.. I had to go run it through a spot free carwash to get them out.

What about putting some jetdry into the soapy water then washing? would that fix it? I really never had this problem before.

 

Keep a good coat of wax on it, every 3 months or so, and quickly wipe the car dry after washing. If you have spots that won't come off try the clay bar method.....and no don't use anything other than soap specifically for cars. Dish soap can screw up the clearcoat.

 

Dry the car off after washing, buff them off and put a good coat of wax on.