Supports Biological Filtration
Water moves through the filter area before returning to the pond, giving beneficial bacteria surface area to colonize and help process pond waste.
DIY Pond Waterfall 1200
$99.99
NO Tariffs. Just Savings. PROUDLY MADE IN THE USA!
• Spillway Width: 14" Wide
• Filters up to: 1200 Gallons
• Max Flow Rate: 2000gph
• Dimensions: 19" x 15.5" x 14.5"H
• Max Pond Size: Up to 8' x 11' or Similar
• Lifetime Warranty
• Filters up to: 1200 Gallons
• Max Flow Rate: 2000gph
• Dimensions: 19" x 15.5" x 14.5"H
• Max Pond Size: Up to 8' x 11' or Similar
• Lifetime Warranty
Biological filtration and a natural waterfall return
DIY Pond Waterfall 1200
Build a compact waterfall while adding biological filtration and water movement to a new or existing garden pond. Formerly named the Serenity Waterfall, this entry-level waterfall box is designed for ponds up to 1,200 gallons and accepts up to 2,000 GPH of delivered flow.
Pond capacity: Up to 1,200 gal.
Spillway: 14 in. molded
Maximum flow: 2,000 GPH
Dimensions: 19 × 15.5 × 14.5 in. H
A Compact Waterfall Box with Two Jobs
Adds Movement and Aeration
The 14-inch spillway returns water as a visible waterfall, adding circulation and helping increase gas exchange at the water surface.
Fits Smaller Pond Projects
The compact box can be positioned at the pond edge or at the head of a short stream and concealed with surrounding rockwork.
What Comes with the Waterfall Box
Included
- DIY Pond Waterfall 1200 filter box with 14-inch molded spillway
- White bio filter mat
- Mesh biological-media bag
- 1.5-inch plumbing fittings, including 90-degree and barbed fittings
- Stainless screws and screw caps
- Liner clips
- Silicone
- Installation instructions
Not Included
- Pond pump and skimmer
- 1.5-inch flexible PVC pipe or compatible tubing
- Pond liner and protective underlayment
- Teflon tape, PVC primer and PVC cement
- Hose clamp when using the barbed-fitting option
- Excavation tools and landscape materials
Rocks and gravel are recommended to complete the pond but are not included.
Complete the installation with a properly sized pond pump, pond plumbing and tubing, and—when building a new pond or stream—liner and underlayment.
DIY Pond Waterfall 1200 Specifications
Model / SKU:PB1151
UPC:897570001151
Maximum pond capacity:Up to 1,200 gallons
Approximate pond size:Up to 8 × 11 ft. or similar
Spillway width:14 inches
Spillway style:Molded
Maximum flow rate:2,000 GPH
Dimensions:19 × 15.5 × 14.5 in. H
Plumbing connection:1.5 inches
Country of manufacture:USA
Plastic component warranty:Limited lifetime for the original purchaser, subject to Blue Thumb warranty terms
Waterfall Box Comparison
Compare pond capacity, spillway width and maximum operating flow before choosing a model. The DIY 1200 is the most compact option in this group.
| Specification | DIY 1200 | DIY 1500 | DIY 2000 | Small Elite | Medium Elite | Large Elite | XL Elite |
|---|---|---|---|---|---|---|---|
| Spillway | 14 in. | 14 in. | 20 in. | 14 in. | 22 in. | 30 in. | 40 in. |
| Dimensions | 19 × 15.5 × 14.5 in. H | 20.5 × 20 × 15.75 in. H | 22 × 23 × 19 in. H | 23 × 24.75 × 21.75 in. | 31 × 30.5 × 23 in. | 31.75 × 40.5 × 25.75 in. | 35.75 × 50 × 30.75 in. |
| Maximum flow | 2,000 GPH | 2,500 GPH | 4,500 GPH | 3,500 GPH | 6,000 GPH | 10,000 GPH | 20,000 GPH |
| Filters up to | 1,200 gal. | 1,500 gal. | 2,000 gal. | 1,500 gal. | 3,500 gal. | 6,000 gal. | 10,000 gal. |
DIY 1200
Spillway: 14 in.
Dimensions: 19 × 15.5 × 14.5 in. H
Maximum flow: 2,000 GPH
Filters up to: 1,200 gal.
DIY 1500
Spillway: 14 in.
Dimensions: 20.5 × 20 × 15.75 in. H
Maximum flow: 2,500 GPH
Filters up to: 1,500 gal.
DIY 2000
Spillway: 20 in.
Dimensions: 22 × 23 × 19 in. H
Maximum flow: 4,500 GPH
Filters up to: 2,000 gal.
Small Elite
Spillway: 14 in.
Dimensions: 23 × 24.75 × 21.75 in.
Maximum flow: 3,500 GPH
Filters up to: 1,500 gal.
Medium Elite
Spillway: 22 in.
Dimensions: 31 × 30.5 × 23 in.
Maximum flow: 6,000 GPH
Filters up to: 3,500 gal.
Large Elite
Spillway: 30 in.
Dimensions: 31.75 × 40.5 × 25.75 in.
Maximum flow: 10,000 GPH
Filters up to: 6,000 gal.
Extra Large Elite
Spillway: 40 in.
Dimensions: 35.75 × 50 × 30.75 in.
Maximum flow: 20,000 GPH
Filters up to: 10,000 gal.
Plan the Installation
This is a standalone waterfall filter, not a complete pond kit. Review the installation guide before excavation so the box, liner, plumbing and pump are matched and positioned correctly.
Choose the Location
Place the waterfall at the pond edge or at the head of a short stream. When using a skimmer, position the waterfall opposite it to promote circulation across the pond.
Prepare and Level the Base
Compact the supporting soil to reduce settling. Level the box from side to side, then tilt it slightly forward—about one-quarter bubble on a level—so water moves toward the spillway.
Connect the Plumbing
Connect the pump line at the rear 1.5-inch fitting. Use Teflon tape on threaded connections and the correct primer, cement or hose clamp for the selected pipe or tubing.
Integrate the Liner
Bring the liner to the waterfall face with enough slack that surrounding rockwork does not pull on it. Follow the manual for the exact liner and spillway treatment.
Load the Filter Area
Place the white filter mat in the bottom of the box and arrange the intended biological media above it as directed in the installation manual.
Test Before Finishing
Run the system before completing the rockwork. Check every plumbing connection, confirm water travels forward over the spillway and verify the delivered flow does not exceed 2,000 GPH.
Product Resources
Review the model-specific installation guide before beginning the project and keep it available during plumbing, liner attachment and filter-media setup.
Pond Installation Overview
This official Blue Thumb video demonstrates a complete pond-kit installation. It is useful for understanding the overall project sequence, but the pump, skimmer, liner, plumbing, rock and other pond-kit components shown are not included with this standalone waterfall box.
How to Install a Pond Kit: Step-by-Step Guide
Product-family installation guidance. Video courtesy of Blue Thumb.
Questions Before You Order?
Our Sales/Tech Team can help you confirm pond volume, delivered flow, pump selection, plumbing and the additional components needed for your installation.
Frequently Asked Questions
Is this a complete pond kit?
No. This listing is for the waterfall-filter box and the listed installation parts. The pump, skimmer, flexible pipe or tubing, pond liner, underlayment, rock, gravel and other landscape materials are sold separately.
What size pond is the DIY Pond Waterfall 1200 designed for?
It is rated to filter ponds up to 1,200 gallons, with an approximate pond footprint of up to 8 × 11 feet or a similar volume. Calculate the actual pond volume from its dimensions rather than relying on surface dimensions alone.
How much pump flow can the waterfall box handle?
The maximum delivered flow is 2,000 GPH. Size the pump for the real system head—including vertical lift and plumbing losses—so the flow reaching the waterfall remains within this limit.
Can I add it to an existing pond?
Yes. It can be installed at the edge of an existing pond or at the head of a short stream, provided the pond volume, pump flow, plumbing and liner connection are compatible.
Is a skimmer required?
A skimmer is not part of this listing. It is commonly used as the pump location and for surface-debris collection in a recirculating pond system. When a skimmer is used, place it opposite the waterfall to help circulate water across the pond.
What filter parts are included?
The current product listing identifies a white bio filter mat and a mesh biological-media bag. Because older Serenity documentation and the current storefront describe the loose media contents differently, contact our Sales/Tech Team if you need confirmation of the exact media supplied with current inventory.
How should the biological media be cleaned?
Our maintenance guide recommends a thorough cleaning about once per year when pond water is at its coldest or below 50°F. Rinse with collected pond water whenever possible because chlorinated tap water can kill beneficial bacteria.
Is this the product formerly called the Serenity Waterfall?
Yes. PB1151 is identified in the official installation literature as the Serenity DIY Waterfall and is now sold as the DIY Pond Waterfall 1200.
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