Started using wfp for the tops around my biggest area this week. Had lots of people telling me that's a great bit of kit! But had 1 old guy, come out and say, what's the idea of this? You have just soaked my nice new painted walls and window sills! I never got out until 11:30 today because it had been lashing down all morning!!! Anyway I told him I'm no longer using ladders and this is a new safe way to clean windows. But he said I don't like it, I prefer you doing it by hand. So I told him I'm trying to keep myself safe and this is what I'll be using. So he then says sure I could just buy one and do it myself, yes you could if you want to spend a few grand! I tried to explain the process of using pure water, but he is well in his 80s and it just wasn't twig going on to him. I said it will dry in perfect and will help keep your windows cleaner for longer. But he said I'm a lot older than you and know it won't dry in on a day like this!! I was starting to loose my patience and I had already thought of the first complaint I got I'd be telling them to find someone else!! But he then said did you get next door in? No she wasn't in, so he paid me for him and his neighbour, said thanks, smiled and walked off!!!! I have only been doing him for about 6 months!! So the 6 houses I did after his I asked everyone what they thought of me using it and everyone was happy!! His painting got done last month, as when I pulled up to do his windows he asked me to skip them as the painter was coming. I said no problem. He came back out and said the wife said we should pay you anyway!! I said no I don't need paid I never cleaned your windows, and then kept offering me a fiver, go take a fiver.. No keep it I never done anything for you and I don't mind leaving you as Iv 80 odd others to do in the area anyway!!!