Windscreen Cleaning

furnessman
furnessman Forum Participant Posts: 5
edited July 2013 in Motorhomes #1

Had our Swift Voyager 630Ek for 5 weeks now and have noticed at the top of windscreen a series of marks which look like tear drops on the outside of windscreen. I presume they come from water coming from roof but:

has anyone suffered the same and what would someone use to clethee sees marks off.

Love Life and Keep Smiling.