Submarines didn’t always have laundry services. For a 90-day trip, the crew would bring six uniforms and rotate them daily. Shower was one minute of water once a week. Everyone smoked tobacco all the time, everywhere.

> Submarines didn’t always have laundry services [...] Everyone smoked tobacco all the time, everywhere

When the choice is between the smell of unwashed and sweaty sailors with dirty clothes, or smoke, ashes, fag-ends and tobacco, then surely the latter beats the former.

Interesting you might only meed 15s of water to shower (assuming you can turn off while soaping) so 5 pause 10, allowing a luxurious 4 showers a week.

Wow. In that environment you'd be getting the equivalent of a pack of cigarettes a day, even as a non smoker

Maybe there can be an ultra-sonic laundry machine

I guess a nuclear submarine doesn’t have the same power bill sensitivity as common household. ;)

There are! And you can buy them for a couple bucks.

The biggest downside: rinsing. You have to do it manually. And no, just refreshing the water and letting the ultrasonic emitter run will do nothing. And doing it manually takes a surprising amount of time.

Thanks! I googled after posting my comment here. No viable path with ultrasonic washers.