My apartment has free hot water and we can use it as much as we like. Precisely speaking it's not free but included in the room rent. It's very pleasant because we don't have to worry about the heating cost. The water is warmed by a huge boiler placed in the basement, but it is very old, probably more than thirty years old. We had an extremely heavy rain a few days ago and since then the hot water has been a little bit cloudy. I don't know whether it is related to the rain. It's not a big problem because the drinking water is still clean, but I needed courage at first when to take a bath with this yellow water. I tried to think of it as a kind of hot spring. There is not any essential difference between both of them, I hope.
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