[[Pedal-powered washing machine]]s have been made at MIT in partnership with a [[Guatemala]]n community (see [http://web.mit.edu/teresab/www/Bicilavadora/index.html Bicilavadora: A Pedal-powered Washing Machine]) and at Humboldt's [[Campus Center for Appropriate Technology]] (see [[HSU Bike powered washing machine]]). These designs use direct power, rather than generating electricity to run the washer.<ref>[http://www.los-gatos.ca.us/davidbu/pedgen/washing_machine.html Pedal Powered Washing Machine Tests], David Butcher, a pedal-power enthusiast, calculates it would take 1 hr and 45 minutes of pedaling to generate electricity for one load of washing. Presumably it is significantly more efficient to use the mechanical power directly, rather than using a generator; also this may be cheaper in a developing country setting.</ref> There are also [[google:pedal-powered-washing-machine|many more hits on Google]].
Examples of wringers can be seen at [http://www.survivalunlimited.com/clothewringer.htm here at Survival Unlimited] - these start at around US$100, but it can be expected that they should be much cheaper in a developing country, especially if mass-produced. (Other pictures, including old-style wringers, can be seen at [http://images.google.com.au/images?q=clothes-wringer&hl=en&btnG=Search+Images Google image search].)
==Reducing the need for washing==
Environmental impact and labor can both be saved by measures that reduce the need for washing: suitable choice of clothes (color and fabric) and habits such as hanging and airing clothes. See the [[Clothing]] page for more detailed suggestions.