Hi guys, I have a similar problem with swirl marks, but it's not the water it's Turtle Wax Black scratch remover solution. I accidentally allowed it to dry before wiping off the excess (the scratches still remain) and now it has this horrible mark which can be seen once the car is washed/dried.
I have tried waxing it (btw I find that the Turtle Wax Black Wax works a dream on the brilliant black Horus) but I still can't get rid of this mark, I don't suppose anyone has had a similar problem/knows how to rectify?
Cheers
