this post was submitted on 13 May 2025
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In the UK all the urinals in the bathroom will be flushed automatically at the same time using an auto-syphon that is attached to a tank that's slowly and continuously filled with water.
So it requires no moving parts or electricity, and flushes automatically at a regular interval depending on how fast the water supply is.
And it's been that way basically forever.
Sounds like a waste of water. Why not simply use motion sensors or flushless urinals like they do in the US?
The modern ones do, this was the solution before motion sensors
That's awesome! Do you by chance know what they are called? I did a quick search but all I see are electronic ones.
They're typically just called a "urinal automatic syphon"
Here's a great Steve Mould video on them if you want to learn more
https://youtu.be/XjQc8Bf0UlM
Thanks. I love Steve Mould.