Pond Planning Portal
Pond Planning Portal
Professional-grade tools for designing, sizing, and pricing your pond — from first measurement to final liner.
Pond Volume Calculator
Start here. Define your pond's shape and dimensions to calculate precise water volume. Supports rectangular, circular, oval, L-shaped, and irregular ponds with variable depth grids.
- Right-sizing your pump and filter
- Calculating treatment dosages
- Planning water changes
Video Walkthrough — Coming Soon
Open Volume CalculatorPond Liner Calculator
Size your liner with precision. Imports your pond design and recommends exact liner dimensions, material, and cut — including box-welded specifications for a perfect fit.
- Flat liner sizing
- Box-weld specifications
- Material selection
Video Walkthrough — Coming Soon
Open Liner CalculatorPond Aeration Calculator
Enter your pond size, depth, fish load, and setup to get a personalized air pump recommendation with pricing and annual operating costs.
- Diaphragm vs rocking piston matching
- Aerated bottom drain support
- Climate zone adjustments
Video Walkthrough — Coming Soon
Open Aeration Calculator3D Hydraulics Visualizer
Visualize water flow, pump placement, and circulation patterns in an interactive 3D model of your pond design.
- Waterfall and stream planning
- Pump and filter placement
- Identifying dead zones
Equipment Buying Guides
Deep-dive guides written from years of selling and supporting this equipment. Each guide includes product comparisons, sizing charts, installation tips, and honest recommendations.
Pond Aeration & Air Pumps
Everything from diaphragm vs rocking piston to winter aeration, dissolved oxygen science, and emergency backup. 15 articles.
Pressure Filters & Bead Filters
AlphaOne vs AlphaNano, sizing, maintenance, budget picks, and when to upgrade to an RDF. 12 articles.
Rotary Drum Filters (RDF)
RDF vs bead vs sieve, gravity vs pump-fed, micron screens, combi filters, and installation. 10 articles.
Bottom Drains
Aerated vs standard, BD vs skimmer, sizing, settlement chambers, retrofitting, and system design. 10 articles.
UV Sterilizers & Clarifiers
Sterilizer vs clarifier, sizing, placement in your filtration system, and top picks reviewed. 5 articles.
Getting Started
New to Koi Ponds?
Start here. Beginner guides covering what you need to know before breaking ground.
Building Your Koi Pond
DIY guides, best practices, and step-by-step build walkthroughs.
Customer Corner — Pond Builds
Real builds from real customers. Get inspired by what others have accomplished.
Pond Planning Portal
Professional-grade tools for designing, sizing, and pricing your pond — from first measurement to final liner.
Pond Volume Calculator
Start here. Define your pond's shape and dimensions to calculate precise water volume. Supports rectangular, circular, oval, L-shaped, and irregular ponds with variable depth grids.
- Right-sizing your pump and filter
- Calculating treatment dosages
- Planning water changes
Pond Liner Calculator
Size your liner with precision. Imports your pond design and recommends exact liner dimensions, material, and cut — including box-welded specifications for a perfect fit.
- Flat liner sizing
- Box-weld specifications
- Material selection
Box-Welded Liner Configurator
Configure and price a custom-fabricated drop-in liner from BTL Liners. Specify your exact dimensions and material and add directly to your cart.
- Custom PP-45 and XR-3 PW liners
- Precise corner fabrication
- Instant pricing
3D Hydraulics Visualizer
Visualize water flow, pump placement, and circulation patterns in an interactive 3D model of your pond design.
- Waterfall and stream planning
- Pump and filter placement
- Identifying dead zones
All tools are free to use. Designs are saved to your account and accessible across devices.