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?
Passive
Note: Cost, carbon and footprint are broad judgements against comparable building approaches, not measured figures.
Structural support for a full tank at height (water is roughly 1 tonne per m3), and either a source above tank level or a means of lifting water into it
A water tank or cistern placed higher than the taps it serves, on a stand, in the loft or up the slope. It stores water to cover gaps in supply, and its height gives pressure so water flows to the taps with no pump. It only fills without a pump if the water source is higher still.
The only option catalogued for this need so far, so there is nothing to compare it against.
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.