If you arrive on a 90 day journey, you can bank your shower points (not shower) until your last day in the station, and spend your shower credits for a 52 minute shower! (1.3 gallons/minute)
https://brr.fyi/posts/showering-at-the-south-pole
> Reasonable options are as follows:
> Every 3 days: 102.9 shower-seconds. That’s 1 minute, 42.9 seconds. Bold and daring! Can you rinse off in time?
> Every 4 days: 137.2 shower-seconds. That’s 2 minutes, 17.2 seconds. Enjoy the extra time! You’ve earned it.
> Every 5 days: 171.5 shower-seconds. That’s 2 minutes, 51.5 seconds. Approaching luxury territory. Enjoy every precious, hard-earned second!
> Every 6 days: 205.8 shower-seconds. That’s 3 minutes (!!), 25.8 seconds. High risk, high reward. If you can hold out, you’ll be able to enjoy an indulgent, almost decadent shower.