Use washing system !

Hello Elkgemeinde, my XC 70 is now almost 3 months old, a great car, I am absolutely thrilled ! so far I have with the use of washing machines very restrained, i.e. 1 x a textile (bestcarwash in bochum) used, otherwise only on the self wash boxes with dirt solutions high pressure cleaner, smudges etc. tried, was often powerful salt crusted everything ! P.S. in the osterzgebirge lies more than half a meter snow. How do you do that, my paintr said, as far as possible no loss search, only textile – of which there are unfortunately only few in the east !!??? Who has sealed the paint again and how and where ?? thank you !!!