Whatho everybody, I'm new here. This forum is the cats pyjama's in my opinion. Now here is my question. Started window cleaning with wfp (slx 25ft) and I have a spot of bother. I've been practicing with the pole on my house. I have poled my upstairs velux windows about 4-5 times over the last two days. They really should be gleaming, one would imagine. However, when I ankle upstairs to check my work I find that the window is below par. There seems to be a film of dust over the window which is quite ground on. I can remove it with a dry cloth and a bit of effort. What am I doing wrong chaps and chapettes? I am using a super lite mixed medium hybrid brush. At full extension I cannot seem to get any pressure into the brush head. Thanks for reading this. Looking forward to your oodles of experience.