To all who are thinking about catching their own rainwater, and don't know where to start. I am maintaining an article to put all the information together:
http://surya-blog.com/all-you-need-to-know-about-catching-rainwater/
I have created a google spreadsheet for the calculations of the roof and cistern size: https://docs.google.com/spreadsheets/d/1R9OAPcJoKS0TPtduLuNOY0QbFbUrpvpXp8d6-2w2-A8/edit#gid=0
#rainwaterharvesting #googlespreadsheet #roof #watercistern #rainwater #offgridliving #offgrid #permaculture #informational #freestuff #freebies