Catching the Rain, Growing the Food: Scaling Up Your Homestead System

The rain is coming. It's torrential, it's loud, and it's doing exactly what we need it to do: filling up the catchment system. If you’re building out a basement garden, setting up a balcony container garden, or even just trying to keep your starter plants watered through a dry spell, you know the feeling. You get the right setup—the gutters, the downspouts, the tank—but you need it all connected, sealed, and ready for the next big downpour.

This whole process of capturing, directing, and storing water is the foundational principle behind everything we do, whether we’re talking about a simple mason jar setup or a full-blown aquaponics system. You can do this in your garage, your basement, or even your RV.

Watching the process of getting the gutter piece secured and ensuring that every drop that falls gets directed into the main tank is a perfect lesson in system design. It’s about redundancy, managing flow, and making sure the output matches the input. When we apply that same thinking to growing, the principle is the same: capture the resource (rain, fish waste, sunlight) and direct it efficiently to the roots.

From Gutters to Gutters of Growth

If you’re new to this, don't even worry about a massive greenhouse or a full food forest right now. Start small. Maybe you’re keeping a few goldfish in a 20-gallon aquarium just to see what happens. That aquarium is your first "catchment tank." The fish waste is your initial nutrient source—your "rain."

This is where aquaponics shines. Forget the idea that you need perfect soil or perfect weather. You need a closed loop. If you're already keeping fish, you're already halfway there. The fish produce waste, which naturally elevates the nitrates in the water. Instead of letting that nutrient-rich runoff go down the drain (or into a septic field), we use it! We feed it to lettuce rafts or DWC containers.

Think about it: no weeding, no soil building, and the fish are doing the fertilizing. It’s a self-regulating miniature ecosystem. You can build a small, simple system using just a few buckets and a small aquarium—a perfect project for a rainy weekend when you can't get outside.

We're talking about the same level of careful assembly required for a rain catchment system—getting the pieces to fit, sealing the joints, and ensuring the flow path is uninterrupted. The goal is always to make the system work for you, minimizing waste and maximizing output.

Scaling Up the Cycle

When we look at larger builds, like the community-scale systems Murray Hallam has been working on, the principles remain the same, just on a bigger scale. It’s about understanding the nutrient load and matching it to the plant uptake rate. If you’re planning a larger setup in your backyard, remember that the system needs time to stabilize. Nothing happens overnight.

For those of us building out our own little pockets of production—whether it's a vertical garden on a cramped apartment balcony or a simple raised bed receiving runoff from a roof—the key takeaway is this: **Start with the smallest viable unit.**

"Don't wait for the perfect season or the perfect amount of space. Get one mason jar going today. Get one seedling started. That small win builds the momentum for the next build."

If you’re a teacher, this is gold. Imagine running a classroom system. You can start with a couple of goldfish in a small tank, paired with a small DWC setup for herbs. It’s educational, it’s low-cost, and it demonstrates a complete, working food cycle. We welcome both homeschool and public-school educators to see how this works!

Ready to take the next step? If you’ve got a small container garden going, look at your water source. Can you connect it to a small, sealed reservoir? If you have a fish tank, can you adapt it to feed a small lettuce raft? The resources are all around you—they just need the right plumbing and the right intention.

Check out some basic tutorials on building simple DWC systems using materials you might already have in a shed or garage. Or, if you’re ready to talk about local builds, come join us at our next Garden Gates Open day!