As its a bit quiet.
I have been looking for a simple method of making wfp brushes swivel, well after only 8 years of pure concentrated thought, here it is- loads of experiments and devices, various sorts of brushes etc etc ....tarrahhh No expense spared.
" Take the spring out of the threaded cone adapter by squeezing it together and pulling it out ! " :
Then slip the cone back in the top of the unger elbow so that the cone spins inside the tube with just a bit of friction. ( you may need to do a bit of sanding if its too tight.
Obviously not for use when using hanging with your pole upside down or the brush head could drop off its too loose. !
Try it, you need a bit of an angle on the elbow though, a straight pole will not work. So you can alter the angle of the brush from the ground by just a twist of your wrist. Its handy when working to the side over conservatories etc. That'll be a pint please.