RainwaterToPL
Rainwater planning

Optimal rainwater tank size

Compare many capacities and find the smallest tank that reaches the selected demand coverage.

Tank size optimisation

Enter values or load the example. Everything is calculated locally.

Source: IMGW 1991–2020. You can edit every value.
Monthly rainfall [mm] — editable

Result

The result appears after calculation.
This is a concept calculation. Confirm local rules, water quality, hydraulic sizing and manufacturer instructions.