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Rain Barrel Downspout Diverters

by Bill Brikiatis

Updated: May 18, 2020

Few investments are more practical for backyard gardeners than a rain barrel with a gutter downspout diverter. If you have a good sized garden, harvesting water from your rooftop can:

  1. Save on your water bill, particularly where rates are high
  2. Allow you to conserve water or continue gardening during a watering ban
  3. Provide chlorine-free, nitrogen-enhanced water for your plants
  4. Stop soil erosion from fouling brooks, creeks, streams and vernal pools

Table of Contents

This is a long, detailed article. You can jump to where you want to be by clicking on the different sections below. To come back to this table of contents, just use the back button on your browser.

  1. Why a gutter downspout diverter?
  2. Rain barrel downspout diverter guide
  3. Rainreserve Basic Rain Diverter
  4. Oatey 14209 Mystic Rainwater Collection System
  5. Flex-Drain Catch-A-Raindrop Kit

Why a gutter downspout diverter?

If you live in an area where temperatures drop below freezing, you need to consider how to shut down the rain barrel system in winter. Otherwise, the barrel will freeze and break.

A downspout diverter makes it easy to revert back to your original, winter-ready gutter system. Plus, if you set it up right, a diverter will automagically divert water back to the gutter system to prevent the rain barrel from overflowing.

Let’s take a sec to get the legal words out of the way. This article may contain affiliate links. That means if you click and buy from my partners, I will make a tiny amount of money at no extra cost to you. This in no way affects my recommendations.

Rain Barrel Downspout Diverter

Harvest Water From Your Roof

All my articles on rain barrels and rain barrel downspout diverters.

As DIY projects go, installing an automatic gutter diverter is an easy one – even for someone who is NOT great with tools.

You can use a rain barrel without an automatic downspout diverter. My father-in-law does, but he lives in Florida where he never has to shut down his barrels due to ice. He has a manual diverter with a daisy chain of several barrels and no cellar, so he’s not concerned with the barrels overflowing and water getting into his cellar.

Related: Info on Rain Barrels and Accessories.

Rain barrel downspout diverter guide

I suspect that downspout diverters are available offline in stores in areas where water is less plentiful. In my area, where water is plentiful and cheap, they are not available in brick and mortar stores. You can only get them online.

To make it easy for you to pick a diverter, I’ve provided a handy guide to the most popular products. I’ve only looked at automatic diverters and not manual options that require you to switch the water flow from the rain barrel to the gutter system manually.

Downspout Diverter Guide
The diagrams above show how a downspout diverter works.

Two important considerations are the:

  1. Size of your gutter
  2. Length of the hose you’ll need to connect the diverter to the rain barrel.

You need to make sure (1) the diverter fits your gutter and (2) the hose is long enough to reach from the diverter to your barrel.

Here’s a review of the some of the most popular downspout diverters:

Rainreserve Downspout Diverter
Rainreserve is the downspout diverter I’ve used for 10+ years.

Rainreserve Basic Rain Diverter

Comments: This is the diverter I’ve used for 10+ years. There are some improvements that Rainreserve could make to the design. But, all in all, it’s a pretty good product.

You can read my product review at My Automatic Downspout Diverter. Some people said that they didn’t like the hose that came with the product and have purchased their own.

FeatureDescription
Hose Length6′
Gutter Sizes2″ x 3″, 3″ x 4″
More Info / PricingClick Here
Oatley Downspout Diverter
The Oatey is UV-resistant. Plus, it connects to the hose on the side.

Oatey 14209 Mystic Rainwater Collection System

Comments: Unlike some of the others, this diverter has the hose outlet on the side of the box. It makes it easier to connect to the barrel, but may leave more water in the diverter. More water in the diverter could increase the chance of mold or algae growing.

The Oatey is made of UV-Resistant material that you can paint. UV-resistance is important.

FeatureDescription
Hose Length4′ Hi-flo
Gutter SizesStandard 2″ x 3″
More Info / PricingClick Here
Fiskars Downspout Diverter
The Flex-Drain Kit allows you to attach a garden hose directly to the diverter.

Flex-Drain Catch-A-Raindrop Kit

Comments: The colander design will probably clog with leaves and other debris. There is no way to clear material in the colander without taking the downspout apart. This is a serious issue.

Also, the manufacturer (Amerimax) doesn’t provide a hose as part of this kit. Plus, it’s not UV- resistant.

One nice feature is having a screw in garden hose fitting on the diverter. This means you place your rain barrel anywhere (must be downhill) and it doesn’t have to be close to the Flex-Drain. But since it’s made of plastic, you won’t be able to tighten it well enough to stop leaking.

FeatureDescription
Hose LengthNone
Gutter Sizes2″ x 3″
More Info / PricingClick Here

Do you have experience using a downspout diverter. I very much would like to know about what you’ve learned. Let our community know by commenting below.

Related articles that might interest you:

  1. My Rain Barrel Automatic Downspout Diverter
  2. Fixing an Overflowing Rain Barrel
  3. I Shopped for Hoop House Kits. A Review of the Three I Considered
Downspout Diverters
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Filed Under: 2. Intermediate -- A Little Difficult to Complete, Popular Tagged With: rain barrels, sustainable, watering

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Meet the Blogger

Bill Brikiatis

Hello! I’m Bill Brikiatis. I started this website in 2010 to help you get better at growing organic food in your backyard.

I’ve been growing fruits and vegetables for nearly all my life. And I'm over 60.

That’s not to say that I don’t make mistakes. I make plenty, then I write about them so both you and I get better at growing great things to eat.

You can read more about me and Suburban Hobby Farmer on my about page.

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