Two buckets make up our washing machine. I got this navy blue one a few years ago and used it to save water, electricity, and explore a simpler life. The problem in Indiana and Pennsylvania was that I could never get the clothes wrung out enough so they would get mildew-y stinky on the line.
That is not a problem here. The first clothes I hung on the line were dry by the time I washed the 4th bucket load. Which is small, by the way, a full bucket in this washing machine is 2 t-shirts or 5 pairs of underwear.
There's a slotted tray at the bottom of the bucket to keep the clothes a couple inches off the bottom, theoretically cause the dirt all settles there, so this keeps the clothes out of the dirt. I don't think that makes sense, cause I'm using the plunger as heartily as I can, and I'm sure that pulls the dirt up through the tray. Other than that, any bucket and any plunger would be equal to this task.
I got the sky blue bucket here to facilitate rinsing, so I can use the same wash water a couple times, then turn the rinse water into wash water, and so forth.
Wind, as is so often the case here, is the biggest challenge.
I spent hours this week burying buckets (again, buckets, but this time they hold posts in concrete) that we're using for shadecloth because the wind keeps taking them down - sometimes onto the van. We wonder when one will land on a dog or person! Only two buckets-with-posts are still unburied, and that's because we don't know where they should go yet - it's a lot of work to do twice.