Hey folks, I was already remembering the washing machine I'm about to describe, and thinking about making it, before I saw this post. How serendipitous is that?
Visiting a couple living off grid, with a small child (small child = laundry), the fellow had built the following:
It was two big plastic water-filled drums, in each of which a tire-less bicycle wheel was used as a plunger/agitator. BUT: the bike wheels were firmly fixed to something like a 2x2. Both 2x2s had a pivoting connection to a single rocking arm. This rocking arm was supported in the middle with a pivoting connection to a vertical post, just below shoulder height. You worked the rocker arm with your own arms. So, the whole thing was like a set of old fashioned balances, like the Libra symbol, but instead of dishes suspended from the arms, there were bike wheels. The movement of the balancing arm up and down, made the bike wheels plunge up and down, moving both at once in opposition, in the barrels full of laundry--big enough to handle duvet covers, even. Two barrels of grubby clothing, cleaned at once. One could be sudsy, the other could be rinse. The movement of the machine was very smooth; it was FUN to do, and everybody who happened to be visiting at that moment, had to have a go...never before had I seen so many people thrilled to be doing laundry! The fellow must have been familiar with the tale of Tom Sawyer and his chore of whitewashing the
fence....
This is my idea of efficient. Getting a big load done without a great deal of time or effort.
I did not even own a camera at the time, otherwise I would post a picture.