Your Local Cassandra

Your Local Cassandra

An Illustrated Rain Harvesting Guide

First draft

Jessica's avatar
Jessica
Dec 03, 2025
∙ Paid
Hard at work

Recently, people online have started posting about what it’s like to live near a data center. They have to fill their toilets with extra water to flush them. Water trickles from the tap. It’s more proof that you don’t have to live through an epic drought or a disaster to need some prepping skills. No, it’s not fair that we have to do this. But if you look around, nobody is really asking us what’s fair anymore.

Many of us have thought about installing rainwater harvesting systems, but we’ve never done it because it looks hard and expensive. So, I’m trying to solve that problem and put together some ideas for those of us who can’t shell out thousands of dollars to redo our roofs and have giant cisterns installed.

These fifteen pages took a huge amount of work, but they’re done, and now we’ve got a foundation. I’m going to take the feedback I get, keep experimenting, and expand this guide over the next year. I’ve already spent the last couple of weeks trying out pipes, adapters…

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