That looks like a Extreme soft with a silly rinse/faffer bar attached, get rid of both and go for a medium mixed with pencil or fan jets, if using hot you're better using a stiff as the hot will soften it slightly, no need for anything else, that said an Extreme brush will never outlast a brick but they do make your day so much easier so well worth the extra expense.
Alex I am using hot but not up to the 30 c it mentions, maybe I need to try the ultimate 35 cm, Dry clean, I wouldn’t be without my rinse bar, been using them for over a year, the only problem with them is they split along the top, maybe due to water pressure
That’s why unless the job is above 30 odd feet I don’t bother with them,if I saw someone using something like that on my windows I’d have something to say to them or I’d get rid lol if you use hot they last days only. Much better off with a ultimate or similar.
Hot water?I can’t see why that would happen, I use xtreme brushes and that’s never happened to mine, mine last months...