A few weeks ago I had a conversation with an American colleague regarding the maximum water pressure at home connections. He was amazed to hear that the water pressure at my house is about 9 bars. To show him I was not mistaken I connected a pressure gauge in my garden and took a few pictures:
According to the guide line the maximum pressure should not exceed about 60 or 65 meters (and that is also very high!). When we bought the house, a few years back, I installed a pressure reducing device and set it to 35 meters (I get no complaints from my girls).
A block down the hill from my house the city installed about two years ago a set of pressure reducing valves. During the construction I took the following (bad) pictures: