See

a few know
Also to actuall use poles over 25-30ft you need to use a whole body technique which takes a while to master, its sort of like a ballroom dance step

who cares what you look like tho if its saves one from injury then its worth it wouldnt you say.
For rinsing with poles over 30ft allways keep brush on the glass, move around I mean really sway and step back and forth for the scrub not moving your arms just letting your steps controll the motion of the pole. Then obviously start at the top with a little extra attention to see the jets wash right up to the top of the glass then with small up down jerks work you way back and forth a cross and down the glass by doing this action you should be stepping slightly left to rinse the right side and vise versa when you step left or right you slightly drop the pole the other direction. And making sure you follow the whole wave down.
You can only do the steps and body technique with brush on theres no way you can do it lifting off, the whole technique is the way your surrposed to use wfp anyone lifting of is at serious risk, there is no need to lift off at 18ft or even mini-pole 4ft work no need whatsoever!!!
To clean a brush at or on a window up to 40ft is simple, quite simply scrub hard on transome bars up and down, or the opening frame side to side then when all the bits come away just wash them down. remember providing your using a good brush, double trim and sufficeint flow the will be no actuall impurities in the brush just foreign bodies (not water solouable small bits of crap there already sterile because the have been rinsed) the technique above will completly eliminate and brush contamination BECAREFULL THERE IS A KNACK TO IT
Brett,
I would and mite put a little clip up if and when I get time and have someone with me to film the skill's

riverside,
Im in Broxbourne mate, if you need any pointers and your in this neck of the woods give me a shout.
ProPole