Retrofitting Filtration to Finished Koi Pond: Biofalls Solution

Adding Filtration to an Existing 5,000-Gallon Concrete Koi Pond

A pond builder completed a concrete pond without filtration. Owner asked about practical, affordable options—specifically whether BioSteps #10 portable filter boxes (rated 2,000 gallons each) would suffice and how many to install.

Recommended Solution

• Aquascape Designs Biofalls: Purpose-built for retrofit installations
• Models available for various pond sizes
• Proven reliability in professional installations
• Integrates with waterfall aesthetics

Why Not Multi-Chamber Concrete?

• Expensive and complex for finished ponds
• Biofalls simpler, less messy, cost-effective
• Portable filter boxes often underrated for claimed capacity

Research Aquascape Biofalls models and consult with local pond specialists for sizing.