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isolatedscotch
Copying the text from another comment i made here:
I have a standalone bidet, not the toilet bowl attachment, which is basically a mini sink, and it works like a sink in that you can regulate flowrate and temperature with the handle
with this kind, you have 100% cleanliness since you use your hand to clean everything, and after it there’s a mini-towel for each person, usually in a towel rack near the bidet so no-one gets confused, and usually in a smaller size then normal towels.
If you’re worried about the idea of using your hand being unhygienic, rest assured, there’s a radical invention called washing your hands afterwards, which, by the way, you should do anyways even if you use toilet paper.
as much as I love trains (I’m on one while typing this) I can’t get myself to spend 170€ for a 21 hour train, even if part of it is spent sleeping, when a 2 hour flight could do the same for 50€.
I don’t know if it’s just cheaper or if there’s massive subsidies like other comments were saying, but for now it’s highly unpractical and uneconomical
i didnt quite understand the issue, but if you just need -30V you can get another 30V power supply and join them in series (the ground wire from the old and the positive wire from the new supply), then you can use the joined wire as ground, the ground side of the new supply as -30V and the positive of the old supply as +30