Just stick to your window cleaner!
The idea of this device is very good, and pretty easy to use one would think. I was quite looking forward to cleaning my upstairs windows as they were quite dirty as I had sacked my window man. Anyway, put it all together, turned on the hose and then realised it was hopeless. Described as lightweight, but really the big brush attatched to the three extension poles made it too heavy to control. At its full length, it did not reach my upstairs windows, so I tried standing on a tool, but with the weight of it plus a good stream of water, it just went from side to side on its own and sent me flying of my stool, which could have been very dangerous! As well as this with the laws of gravity the water finds it hard to go upwards for this considerable height and finds it much easier to run back out of the hose all over you. My sleeves and trousers were soaking wet and after trying to use just the squeegy thing instead of the brush this was even more useless and fell apart. What a complete waste of money this was for cleaning upstairs windows and I cannot imagine it would be any better for cleaning anything on the ground either. Dont even bother to buy one!!
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