Steven M. Johnson imagined the shower of the future 25 years ago

recirculating shower
© Steven M. Johnson

We recently posted The shower of the future recycles its own water and heat, after which Steven M. Johnson sent us a note:

This was a recycling shower that I imagined would be used at a future time, though I was not in a position to imagine complex filtering, etc. My wife thought the idea was GROSS, showering fully or partially in your own dirty shower water. But at least I had a small filter on the shower head.

But it wasn't such a bad idea at all; it just needed a better filter.

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