Wash the car with pH-neutral car shampoo and clean water
Rinse thoroughly to remove loose dirt and minerals
Dry immediately with a clean microfiber towel
Use a dedicated water spot remover on affected areas
Apply a 50/50 mix of distilled white vinegar and water for light spots
Wipe the area gently with a microfiber cloth
Rinse the surface after using vinegar
Clay bar the paint if spots are bonded to the surface
Use a polish or finishing compound for stubborn spots
Apply wax, sealant, or ceramic coating after cleaning
Wash and dry the car in shade
Use filtered or deionized water for rinsing when possible
Avoid letting water air-dry on the paint
Repeat treatment if spots remain
Seek professional detailing for severe etching