You can also use the Sodastream there (so on the 3rd floor). I have been tempted by it for a long time, but have now changed my mind and will stick with my old Sodastream. Reason: we have a soda water tap in the office and if you don’t run the water for a while, you have to let it run quite a bit until you get fresh water with bubbles again. Since we are not at home during the day, we would have to let the water run too long every evening. If you then don’t draw new water for an hour or longer, it’s the same again. I think the system is very practical and good if you have a steady and above all regular flow; otherwise I would rather advise against it. There is always water in the pipe and it stands still. Also, these taps only make sense if the water is cooled at the same time. The technical effort is quite high and it takes up a lot of space under the countertop. If someone is always at home with you and the tap is regularly used, then it is a great thing. But the space for it must also be there. In a rather small kitchen, I wouldn’t want to give up urgently needed storage space for it (but of course everyone sees that differently; I am a confessed storage junkie *g*). What I think is pretty cool and what we will certainly take is a hot water tap. There you get hot water directly from the tap (with a corresponding safety device so you don’t unintentionally turn on the hot water and don’t expect it). There are also versions combinable with soda. So a tap that supplies cooled, boiling, and sparkling water. For the reasons described above, I will limit myself to the hot water and continue to carbonate my water with the Sodastreamer.