I know what you're saying about using tap water but I have no choice, you literally can't get to the back of my house without going through it, that would mean i'm either in to let the window cleaner do his job (not practical for me or the window cleaner) and he would have to drag everything through the house. It's tap water or rain water and I prefer tap
Not only that the windows are nackered, crap ones already here when we moved in, the main reason I want to start doing them is because we just had two new bay windows at the front, which are decent. I can either do them with tap water and wfp or let the trad guy carry on, but he doesn't do the frames.
As for a chemical feed, it would be used for any cladding cleans so a sprayer is not an option as it wont reach.
I think I go the hose size wrong, its the small clear hose used in the pole already, can this be connected to a tap somehow? Is a shurflow 60 psi pump enough to feed this when using chemical, do you run this off your van battery.
Cheers for all the replies so far.