UnderGround Downspout Kit
Hidden downspout extension to manage roof water runoff.
$44.95
UnderGround Downspout Kit includes: Bubbler Pop-up Assembly and Debris Filter. 4-inch round PVC drainage pipe and elbow sold separately.
UnderGround Downspouts are downspout extensions made to keep roof water away from your home’s foundation. It’s entirely underground removing all obstructions versus traditional downspout extensions that lay across the lawn. You can even mow right over them!
Bubbler Pot
- Width: 9″
- Height: 8″
- Color: black pot and center post and UV protected green lid
Debris Filter
- Overall Depth: 5-3/4″
- Overall Height: 10″
- Grill Width: 6″
- Grill Height: 7-3/4″
- Color: Black
PVC Pipe (sold separately)
- 4″ by 10′ thinwall/triplewall solid drain pipe (Available at Home Depot)
- 90-degree elbow (Available at Home Depot)
AS SEEN IN:
![](https://waterproofcdev.wpengine.com/wp-content/uploads/2017/03/thisoldhouse.png)
![](https://waterproofcdev.wpengine.com/wp-content/uploads/2017/03/The_New_York_Times_logo.png)
![](https://waterproofcdev.wpengine.com/wp-content/uploads/2017/03/familyhandyman.png)
![](https://waterproofcdev.wpengine.com/wp-content/uploads/2017/03/wallstreetjournal.png)
How do UnderGround Downspout kits work?
UnderGround Downspouts run maintenance free year-round to properly manage roof water runoff around your foundation. Keeping water away from your home’s foundation is a step in preventing a wet basement. Plus, they blend right into your landscaping and eliminate those annoying downspouts laying across your lawn.
![UnderGroundDownspouts-HowWorks1 how the debris filter works with underground downspout extension](https://dev1.waterproof.com/wp-content/uploads/2021/09/UnderGroundDownspouts-HowWorks1.png)
1. Debris filter removes bulk
As water and debris flow from the gutters, leaves and twigs are filtered out at the debris filter. This allows only water to enter the underground system.
2. Water flows to pot
Water flows through underground 4-inch round PVC pipe (sold seperately) that is pitched toward the bubbler pot.
![UnderGroundDownspouts-HowWorks2 how the water flows to bubbler pot of underground downspout kit](https://dev1.waterproof.com/wp-content/uploads/2021/09/UnderGroundDownspouts-HowWorks2.png)
![UnderGroundDownspouts-HowWorks3 how the bubbler pot manages roof water runoff in underground downspout extension](https://dev1.waterproof.com/wp-content/uploads/2021/09/UnderGroundDownspouts-HowWorks3.png)
3. Bubbler pot releases water
As the bubbler pot fills with water, the green pop-up lids lifts to release water. If bubbler pot doesn’t fill, water drains from the bottom of the bubbler pot into a bed of rock added during installation.
HOW TO INSTALL
UnderGround Downspouts are easy to install yourself. The self cleaning system runs maintenance free year round. Install once and you’re done!
WHY UNDERGROUND DOWNSPOUTS?
![debris-filter-ice-guard UnderGround Downspout Extension Installation Guide](https://dev1.waterproof.com/wp-content/uploads/2021/09/debris-filter-ice-guard.jpg)
WORKS WITH ANY STYLE OR SIZE DOWNSPOUT
The universal debris filter is designed to accommodate any downspout. No special fittings or connectors needed. Debris filter simply rests below downspout and water free falls into the angled grate.
![winterhouse UnderGround Downspout works during winter months](https://dev1.waterproof.com/wp-content/uploads/2021/09/winterhouse.png)
WORKS YEAR ROUND FROM FREEZE TO THAW
For those living an a cold climate (like us here in Minnesota!), the debris filter becomes the ice guard during the winter. Water free falls into the debris filter beneath the downspout creating an ice break. Unlike other products that connect directly onto the downspout, this ice break prevents ice build up in downspout that could reach roof line and create damage.
![lawnmower Mow over downspout extension](https://dev1.waterproof.com/wp-content/uploads/2021/09/lawnmower.jpg)
CAN MOW RIGHT OVER THEM
No need to move those annoying downspouts out of the way each time you mow. Simply mow right over them! The rugged, solid green lid can withstand the weight of a riding lawnmower.
![undergrounddownspout1 Downspout diverter extension](https://dev1.waterproof.com/wp-content/uploads/2021/09/undergrounddownspout1.jpg)
SOLID LID KEEPS GRASS CLIPPINGS OUT
The solid, green lid keeps out grass clippings that can clog other underground systems with grate openings.
![underground-downspout-review-1 Green downspout extension](https://dev1.waterproof.com/wp-content/uploads/2021/09/underground-downspout-review-1.jpg)
GREEN LID BLEND INTO LAWN
You’ll barely notice they’re there.
![underground-downspout-review-3 Debris filter ice guard gutter downspout](https://dev1.waterproof.com/wp-content/uploads/2021/09/underground-downspout-review-3.jpg)
MAINTENANCE FREE
The self cleaning system runs maintenance free year round. Install once and you’re done! Bonus, you’ll never trip over a downspout laying across your lawn again!
FREQUENTLY ASKED QUESTIONS
Got a question about the UnderGround Downspouts? We have answers! Read through our frequently asked questions for more information about the UnderGround Downspout exterior drainage system.
How far away from my home can I install the Bubbler Pot?
You want to install the Bubbler Pot at least 8 feet out from the home. To go further than 8 feet, you need to adjust the pitch of the pipe for proper drainage. The depth of the Bubbler Pot will be 10-inches, so you simply raise up the height of the Debris Filter and elbow to create the proper pitch for the water to drain into the Bubbler Pot.
Can I use this in freezing cold climates?
Yes! Our company is based in Minnesota they are installed on all of our homes and run maintenance-free year round. During the winter months the Debris Filter will act as the Ice Guard for the downspout by creating a break in the system, which prevents water from freezing vertically up the downspout.
What PVC pipe and elbow do I need for installation?
PVC pipe and elbow are NOT included in the kit, but needed for installation. We recommend a 4-inch thinwall solid drainage pipe. They are sold in 10-foot sections. Home Depot sells this pipe that we recommend.
You will alos need a 90-degree elbow for your 4-inch PVC, also available at Home Depot.
We do not recommend corrigated drainage pipe with the UnderGround Downspout.
How do I replace the green lid if need?
We offer replacement parts for the UnderGround Downspout Kit if needed. Here’s a short video on how to remove and replace parts:
ORDER UNDERGROUND DOWNSPOUTS
UnderGround Downspouts are sold in individual kits ideal for homeowners, along with replacement parts if needed. Contractors can order UnderGround Downspouts in bulk cartons at discounted pricing.
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UnderGround Downspout Kit
$44.95 Add to cart -
UnderGround Downspout: Lid
$18.95 Add to cart -
UnderGround Downspout: Center Post
$12.95 Add to cart -
UnderGround Downspout: Pot
$14.95 Add to cart -
Sale!
Debris Filter / Ice Guard
Original price was: $19.95.$17.96Current price is: $17.96. Add to cart -
UnderGround Downspout Kits (Bulk Carton of 12)
$324.00 Add to cart -
Debris Filter / Ice Guard (Bulk Carton of 48)
$562.00 Add to cart -
Bubbler Pop-Up Assembly
$38.95 Add to cart -
Bubbler Pop-Up Assembly (Bulk Carton of 18)
$424.00 Add to cart
REAL PEOPLE. REAL SUCCESS.
Trusted by homeowners and contractors to manage roof water runoff around the basement.
Great product.
Great product and service from this company. We have these installed a few years ago on two downspouts and they work great so we just order 9 more….
The Bubbler pop up assembly is a wonderful way to get rainwater away from your home. Once you install this device you can mow over it even with a zero-turn mower without breaking the top.
Great product. I’ve used the down spout system for 30 years.
Would buy again.
High quality, easy replacement, quick delivery, would buy again.
Exactly what I was looking for to replace an unsightly downspout!
The down spout works amazing. All you need is some pipe and an elbow and some rocks. Better design than any other I’ve seen.