[pcdevils]

People underestimate water needs. Enough to drink, wash, brush your teeth, flush a loo unless you're digging a pit at the bottom of the garden to go in

[echoangle]

If you’re cut off from civilization, you can probably prioritize a bit and only use water for the essentials. Which means no washing/showering or flushing the toilet for a few days.

[dharmab]

Showering is not an option without running water anyway.