I've tried almost everything now in trying to eradicate lines that appears on the window the following morning when the sun shines on the window. It is an arched looking line from fanning technique, a few windows are worse than others but it's a right pain. I'm using Ettore rubber but I've also tried Moerman, ive held the handle further off the glass as suggested by wagga and cut the water down with squeegee on the window at around 45° used different washing solutions. I'm in oz and can't get hold of the razrblade red rubbers. Any suggestions I will try as long as it is using a squeegee. Cheers