The irrigation trench widens at one point and this is where Erin gets her water. Yes, she scoops up water out of that pond into the white bucket and carries it back to her hut.
She washes dishes, clothes, food, herself, in the water straight out of the bucket. For drinking she boils the water and then runs it through a ceramic filter.
Washing dishes is a Process. First you give the dishes to the dogs and the cat to clean up the big pieces. Then you put a little water in the two blue containers, one for the wash (and the water gets dirTY), and one for the rinse. Then you put the dishes on the rack, and then you put them away.