Downspout Diverter in Action!

Did you know you can catch 600 gallons of fresh rainwater for every single inch of rain that falls on 1,000 square feet of rooftop? That’s enough to fill eleven 55-gallon rain barrels! The downspout diverter is the key to the kingdom.

See below to watch and learn just how our downspout diverter works! It’s a simple but brilliant technology (with no moving pieces!) that allows you to harvest the abundant rain that falls on your rooftop every year, and store it away for when you need it most. And the best part is, it handles overflow automatically. Because as those who harvest rainwater already know, you WILL have overflow, even in the worst of drought conditions.

Click the images below to watch our short videos!

Rain Barrels Filling in Real-Time:


Rain Barrels Filling

Downspout Diverter in Action:


Downspout Diverter for rain barrels

We offer our standard downspout diverter in round and rectangular versions. Choose your diverter size when you customize your DIY RainKit™ in our online store! Installation is as simple as drilling a hole in your existing downspout and inserting the rubber diverter head. The piece seals inside the downspout and draws water through the inlet hose into your rain barrels. When barrels are full, water backs up in the inlet hose and falls through the internal spillover in the diverter. In other words, overflow exits down the normal course of your downspout.

That’s right—overflow is automatic! No on-and-off switch, and no mess!


Ready to build your own multi-barrel system?

Visit and navigate to the Online Store to customize and order your very own BlueBarrel SystemTM. Use our zip code search to find recycled barrels in YOUR local region, and we’ll ship the rest of the fittings to your door in our DIY RainKitTM!

For more inspiration, check out our online photo gallery, and don’t hesitate to contact us if we can help you with your order as you get ready to collect the spring rains!


home made rain barrel system


BlueBarrel Rainwater Catchment System


BlueBarrel Hydrologic Cycle Graphic


BlueBarrel is your one-stop-shop for used barrels, DIY rain barrel systems, and gravity-fed irrigation.

We’re tried and true, and we’re here for you!

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