Bucket bath sounds similar to Bucket list , isn't it?
(These pictures are from open source. )
Some of our team members got running water in their bucket list !
Rural communities just dip themselves in a stream, pond or river for bathing. Washing clothes in the same place is a common pattern. We may be sharing the same stream where household animals drink water and get their weekly bath too 😀

Saddest part of the story is that few communities use the same water for cooking as well.
(Please note, that it is Not true for all the communities, where we serve).