Rainwater systems

Linkdump

Great overview of home-scale rainwater systems, with some handy calculations (Imperial) to help think through needs and supply

https://www.treehugger.com/beginners-guide-to-rainwater-harvesting-5089884

Another 101 guide, possible commercially affiliated. Good overview, same good quality diagrams as seen in above article

https://cleanwatergear.com/rainwater-harvesting-systems/

And another 101/overview, with a functioning roof surface catchment calculator

https://www.watercache.com/education/rainwater-harvesting-101

Article on care and cleaning of rainwater tanks

https://rainwaterharvesting.org.au/care-maintenance-of-rainwater-tanks/

Great collection of helpful images on rainwater harvesting

https://www.pinterest.ch/ServiceHomeTholen/rainwater-systems-regenwater-systemen/

Interesting article of a very low cost solution using multiple steel barrels

https://survivalblog.com/2017/04/19/rainwater-harvesting-an-easy-and-efficient-build-by-l-r/

The same low cost 'rain barrel' system outlined here, fed by downspout. This looks ideal for water infrastructure disruption fallback, to tie a household over for a week or so. They cite USD150 total cost:

https://www.treehugger.com/make-rain-barrel-system-at-home-5194982