Pumps, treatments and fish stocking all depend on volume. Pick your pond shape for a sensible estimate.
How it works
Length × width × average depth × a shape factor gives cubic feet, and each cubic foot holds 7.48 gallons.
Before you order
- Average depth is usually much less than deepest depth.
- A water meter on the hose gives you an exact figure when filling.
- Read treatment labels against this number before dosing.
Common questions
How do I find the average depth?
Measure several points across the pond and average them.
What size pump do I need?
A common goal is to move the full volume about once an hour, adjusted for fish and waterfalls.