Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?

Hand-agitated bucket washing machine (manual plunger type)

Passive

One of 4 ways to meet this need. Cost, carbon, footprint and rankings are relative to other solutions for the same need, not absolute.

A two-bucket system: an inner perforated bucket holds the laundry, and a plunger sealed with a bicycle inner tube forces water through it by hand. Having no drivetrain or pedal mechanism at all, it is cheaper and mechanically simpler than the pedal-powered machine. The cost is more direct effort per load. Works with potable or non-potable water.

Cost

Low

Upkeep

Occasional

Skill to build

Basic

Lifespan

10-15 years for the bucket/plunger mechanism; the inner-tube seal needs earlier periodic replacement

Embodied carbon

Low

Space / material use

Low

Output timing

On-demand/controllable

Skill to repair

Basic

Inputs

• Mechanical energy
• Unheated water

Outputs

• Greywater

Compare the 4 ways to meet this need

Levels are relative to the other options for this need, not absolute. Fewer dots is lighter.

• Hand-agitated bucket washing machine (manual plunger type) (This page)
  Can I use it? Works in a flat · No rebuilding needed
  What does it cost me? Upfront cost: Low · Skill to build: Basic · Upkeep: Light · Change to daily life: Daily · Works without the grid: Yes
  Choose it if you want the cheapest, simplest washer for small loads.
• Pedal-powered washing machine
  Can I use it? Works in a flat · No rebuilding needed
  What does it cost me? Upfront cost: Low · Skill to build: Basic · Upkeep: Light · Change to daily life: Daily · Works without the grid: Yes
  Choose it if you want to wash full loads with no electricity at all.
• Electric washing machine
  Can I use it? Works in a flat · No rebuilding needed
  What does it cost me? Upfront cost: Medium · Skill to build: Basic · Upkeep: Light · Change to daily life: None · Works without the grid: No
  Choose it if you want to save time and effort on every wash.
• Line or rack drying for clothes
  Can I use it? Works in a flat · No rebuilding needed
  What does it cost me? Upfront cost: Low · Skill to build: Basic · Upkeep: None · Change to daily life: Occasional · Works without the grid: Yes
  Choose it if you want to cut one of the biggest electricity uses in the house, for free.

Sources

• Low-tech Lab wiki, hand-agitated bucket washing machine tutorial
• Fran’s bucket washer, built in about fifteen minutes

Limitations of this page

We don’t list sizing or quantities, as the yield of each technique depends on the quality of its build. The catalogue compares options but doesn’t dimension them. Regulatory notes are indicative, with a French example, and need to be confirmed locally.