The technician installing our washing machine said that the water pressure in the pipe to which our washing machine is connected is too high, and that it will break if we use it this way. The manual says that it should be between 100 and 1000 kPa and that if it's higher we should have a valve installed. I have contacted the apartment building management company, so it is theoretically possible that they will do something within the next six to eight weeks, but they probably won't tell me when they have. How can I tell if/that the water pressure is too high (and thus, later tell when it no longer is)?
I have tried to take a photo of water flowing into an empty washing compartment, but it's difficult: