Build Your Own 550-Gallon Rainwater System

Don't let FREE rainwater slip away from your home.

This guide shows you how to build a practical rainwater system using two IBC totes, common plumbing parts, and a simple layout. The goal is to help you store more water for your garden without guessing your way through the build.

What This Guide Helps You Do

• Capture roof runoff from a downspout

• Store up to 550 gallons of water

• Use IBC totes as low-cost storage tanks

• Add a first-flush diverter

• Plan overflow before heavy rain

• Build a cleaner exterior cover

• Avoid the mistakes from my first design

Why I Made This Guide

My first rainwater system started as a basic backyard project. After sharing it on YouTube, I received years of questions about parts, setup, layout, overflow, pumps, filters, and design changes.

This updated guide pulls those lessons into one cleaner plan.