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 Pump Sizing
What size pump you need, by pond volume, waterfall width, and total dynamic head. Includes GPH charts and a precise waterfall table.
Friction Loss & Plumbing
Pipe size, fitting losses, and why your flow drops, with the friction and fitting charts plus a total dynamic head calculator.
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.