Rainwater is free, abundant (especially during Michigan’s wetter months), and surprisingly useful. Whether you’re trying to water your garden, wash your car, or reduce your water bill, setting up a rainwater collection system at home is a smart, eco-friendly move.
Here’s a step-by-step guide to get started—no plumbing degree required.
1. Understand How Rainwater Harvesting Works
Rainwater collection involves capturing runoff from your roof, filtering it, and storing it for later use. It doesn’t require a fancy setup—just a good plan and a few affordable tools.
Most basic systems include:
- Catchment area: usually your roof
- Gutters and downspouts: to channel water
- Filter or diverter: to keep out leaves and debris
- Storage container: like a rain barrel or cistern
- Spigot or hose attachment: for easy access
2. Check Your Roof and Gutter System
Before you start collecting, make sure your roof and gutters are clean and in good condition. Old, clogged, or leaking gutters won’t just slow you down—they can also contaminate your water and damage your home.
✅ Pro tip: If your gutters are due for a cleaning or upgrade, take care of that first. Water needs to flow freely to your collection container.
3. Choose a Rain Barrel or Storage System
For most homeowners, a rain barrel is the easiest way to get started. Look for one with:
- A minimum 50-gallon capacity
- A sealed lid to keep mosquitoes out
- An overflow valve for heavy rains
- A screen to filter debris
- A spigot at the bottom for easy drainage
You can place it directly under a downspout, or use a diverter kit to reroute water without disconnecting your gutter.
Want to go bigger? Consider connecting multiple barrels or installing a larger above-ground cistern.
4. Set It Up on a Level, Elevated Surface
Place your barrel on a stable, raised platform (like cinder blocks or a stand). This gives you better water pressure and easier access to the spigot.
Make sure it’s level and secure—barrels get very heavy when full!
5. Add a Debris Filter or Diverter
Even if your gutters are clean, debris like leaves, twigs, and bird droppings can make their way into your barrel. A good diverter or mesh screen keeps your water cleaner and protects the barrel from overflow issues.
6. Use the Water Responsibly
Rainwater isn’t treated, so it’s best used for:
- Watering gardens or lawns
- Cleaning outdoor tools or equipment
- Flushing toilets (with a more advanced system)
Note: Don’t drink rainwater unless you have a proper filtration and purification setup in place.
7. Maintain the System
- Clean your gutters regularly
- Empty and rinse the barrel occasionally to prevent algae
- Disconnect or winterize the system before freezing temperatures arrive
This helps extend the life of your collection system and keeps your water clean and usable.
Final Thoughts
Rainwater collection is one of the easiest home upgrades with lasting benefits. It saves money, reduces stormwater runoff, and gives you a backup water source when you need it most.
Thinking about upgrading your gutters or unsure if your system can handle a rain barrel? A professional inspection can help you make sure everything flows smoothly—literally.
