I was at the local car wash the other day with my bucket and mitt which apparently you're not meant to have. I hose my car down with the high power water then with soap. I then fill the bucket with the soapy water and wash my car by hand. The owner then chastised me for using the bucket to which I responded that there was no way the brush was going any where near my car.
He then explained that he uses the brush on his BMW and that the only reason a brush would damage your paint work is if it wasn't rinsed and clean from previous use.
Opinions please.