Very good in the limits of physics

The telescopic beam tube is made of aluminum tubes with a relatively large cross-sections through which a high pressure hose is fed. Upstairs there is a normal bayonet terminal to which the conventional devices can be connected, down a gun with the current high-pressure connection. When assembling the telescope you have to roll up the internal high-pressure hose accordingly. This is something awkward, but I also think of a better solution.
As I had imagined, I come in a two-storey house up to the eaves. With the slightly bent spray head can be cleaned a good wall. My idea, but still continue to extend the lance with extension tubes, I have not even tried. The robust telescopic tube bends at 140bar already and should be handled only with appropriate force. (Strong muscles in the back was a receipt) If one uses the surface cleaner on the wall at full draw, one is close to the limit of the carrying capacity of the pipes, but it works.
But also for other applications, the telescopic tube is a relief. For example, I on my patio a large balcony whose bottom view I clean every year. After that I have been completely soaked. With the telescopic pipe and 2m extract that works much better and it stays dry.
Since the applications are larger than expected and the execution is very good, I would buy the telescopic tube immediately.