Window cleaning with pure water

Someone asked on the forum yesterday if the windows would need cleaned more frequently if they were done with a water fed pole as opposed to traditional window cleaning methods. The opposite is true, the windows will stay cleaner a lot longer when done with pure water as there will be no soap film left behind.

Next time you clean windows with soap and a squeegee wet your finger and rub your finger across the glass. What you will see is the residue soap film. Because the pure water leaves the window without this soap film, the rain which is pretty pure will have nothing to mix with, hence leaving the windows spotless even after a heavy shower.

Peter