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Blue Thumb Small Pump Canyon Extension PB2354, black cylindrical pond-less waterfall reservoir extension with molded upper rim, side connection openings, and cut guides.

Small Pump Canyon Extension

SKU:
PB2354
$189.99
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Made in the USA
• Compatibility: Small Elite Pump Canyon (PB1168) only
• Overall Height: 22"
• Cut Positions: 9.5", 13.5", 17.5" from top lip
• Auto-Fill: Spinweld connection; fill kit sold separately
• Included: Extension only; Pump Canyon sold separately
• Warranty: View Blue Thumb Warranty Terms
Current Stock:
Description

Pond-less Waterfall Reservoir Accessory

Small Pump Canyon Extension

Build a deeper underground reservoir without unnecessarily expanding its footprint. Our Small Pump Canyon Extension is designed for the Small Elite Pump Canyon, allowing additional excavation depth and increased water-storage potential in a properly configured pond-less waterfall basin.

With a 22-inch overall height and three designated cut positions, this extension provides flexibility when planning your reservoir depth.

Compatible With: Small Elite Pump Canyon
Overall Height: 22 inches
Cut Positions: 9.5", 13.5", 17.5"

Why Use a Pump Canyon Extension?

A deeper reservoir can provide additional water-storage space beneath your waterfall. When combined with the correct basin liner, matrix boxes, and pump vault, the extension helps you design a reservoir that accommodates more water without relying solely on a larger surface footprint.

This can be especially useful when available ground space is limited but excavation depth can be increased.

Important Compatibility Information

This extension is designed exclusively for the Small Elite Pump Canyon (PB1168). It is not intended for the Mini or Large Pump Canyon models.

Sold separately: The Pump Canyon, pump, Basin Matrix, liner, plumbing, and waterfall components are not part of this extension-only listing.

Need the larger configuration? View our Large Pump Canyon Extension.

Product Specifications

Product SKU: PB2354
Product Type: Pump Canyon Extension
Overall Height: 22"
Compatibility: Small Elite Pump Canyon (PB1168)
Trim Positions: 9.5", 13.5", 17.5" measured from top lip
Application: Pond-less waterfall reservoir systems
Auto-Fill Provision: Integrated spinweld connection; auto-fill kit sold separately
Country of Origin: Made in the USA

Installation & Reservoir Planning

The extension is one component of a complete underground pond-less waterfall reservoir. Proper installation depends on the Small Pump Canyon, reservoir depth, liner configuration, matrix arrangement, and access for future pump maintenance.

1

Plan Your Reservoir Depth

Confirm the basin layout, excavation depth, and matrix configuration before ordering or cutting the extension.

2

Choose the Appropriate Cut Position

The listed cut positions are measured from the extension's top lip. Confirm the required configuration and review the applicable installation instructions before making permanent cuts.

3

Integrate with the Reservoir System

Plan the extension with the compatible Pump Canyon, protective underlayment, rubber liner, and Basin Matrix. Keep the pump access opening reachable after stonework is installed.

Product Resources & Installation Guides

Review our installation documents before beginning excavation. These guides explain the broader pond-less waterfall system; confirm extension-specific trimming and installation details with our Sales/Tech Team if needed.

Elite Cascading Falls Installation Guide (PDF) Cascade Box & Pump Canyon Instructions (PDF) Pond-less Waterfall Maintenance Guide (PDF) Blue Thumb Warranty Information (PDF)

See How a Pond-less Waterfall System Works

Our installation walkthrough shows the general construction process, including excavation, reservoir preparation, pump installation, plumbing, and waterfall finishing.

DIY Cascading Falls Waterfall Installation

Video courtesy of Blue Thumb. This demonstrates general pond-less waterfall installation, not the exact PB2354 extension or its cutting procedure. Components shown may be sold separately.

Need Help Planning a Deeper Reservoir?

Not sure which Pump Canyon or extension fits your project? Our Sales/Tech Team can help you review compatibility, depth requirements, and the components needed before you order.

Call 888-619-3474 Email Our Sales/Tech Team

Frequently Asked Questions

Which Pump Canyon does this extension fit?

The Small Pump Canyon Extension (PB2354) is designed for the Small Elite Pump Canyon (PB1168) only. It does not fit the Mini or Large models.

Is the Small Pump Canyon included?

No. This listing is for the extension only. The Small Elite Pump Canyon and other reservoir components must be purchased separately unless already owned.

What do the three cut measurements mean?

The 9.5", 13.5", and 17.5" measurements are the designated cut positions measured from the extension's top lip. They should not be confused with the overall finished depth of the assembled reservoir.

Does the extension increase water capacity?

It allows a deeper reservoir configuration, which can increase available water-storage space when paired with a properly sized liner and Basin Matrix system. Actual storage capacity depends on the complete reservoir layout.

Can I add an automatic water-fill system?

The extension features an auto-fill connection provision. A compatible automatic water-fill kit is sold separately. Confirm the appropriate connection and installation arrangement before ordering.