Water Matrix for Basins - Basin Matrix

Basin Matrix Water Storage System for Pond-Less Waterfalls

Basin Matrix is a high-capacity water storage system designed for pond-less waterfall applications. It replaces the majority of traditional gravel in underground basins, dramatically increasing water storage while reducing excavation labor.

Product Details

WMSM17 & WMLG34 – Blue Thumb

Water Matrix for Basins (Basin Matrix)

Available Sizes

• WMSM17 – Small Matrix
  26.5" L × 16" W × 9.5" H · 17-gallon volume
• WMLG34 – Large Matrix
  26.5" L × 16" W × 17.5" H · 32-gallon volume

What’s Included & Key Benefits

• Replaces up to 90% of traditional gravel used in waterfall reservoirs
• Holds 7.4 gallons per cubic foot vs. gravel’s 2.2 gallons
• Over 3× more water storage capacity than gravel
• Less excavation and reduced labor handling heavy stone
• Allows tighter installations with streams ending directly over the matrix
• Increased water volume reduces refill frequency due to evaporation

Tech Specs

How the Pond-Less Waterfall System Works

After excavating a basin, Basin Matrix blocks are placed on top of a rubber liner to form a high-capacity underground reservoir. A pump housed in a Pump Canyon pushes water through PVC flex hose up to a cascade box. Water flows down the stream and returns to the basin, where it is continuously recirculated.

Easy Installation with Our Kits

• Step 1: Lay out Basin Matrix and Pump Canyon configuration and excavate basin.
• Step 2: Install underliner, rubber liner, Pump Canyon, and Matrix boxes.
• Step 3: Extend liner up the slope and place the cascade box.
• Step 4: Install pump and connect plumbing to cascade box.
• Step 5: Cover with decorative stone, build the waterfall, fill, and power on.

Pond-Less Waterfalls for Trouble Areas

Ideal for steep slopes and areas where plants or mulch won’t stay in place, pond-less waterfalls transform difficult landscapes into beautiful focal points.

Product Resources

• Matrix Assembly Guide (PDF)
• Cascade Box & Pump Canyon Instructions (PDF)
• Pond-Less Maintenance Guide (PDF)

Instruction Videos