FAQ
How deep should a small backyard pond be?
A depth of 18 to 24 inches works best for small residential ponds. This depth protects aquatic plants and goldfish from summer heat while remaining safe and easy to dig.
How do I calculate the right pump size for my waterfall?
Measure your spillway width in inches and multiply by 100 for a smooth water sheet. A 12-inch wide spillway requires a pump producing at least 1,200 GPH at head height.
Do I need a building permit to install a garden pond?
Most cities do not require permits for shallow ponds under 18 inches deep. Always check local municipal codes, because deeper excavations may trigger mandatory safety fence ordinances.
How do I prevent my waterfall from losing water?
Water loss usually occurs when splashing droplets bounce outside the liner perimeter. Seal rock joints with expanding waterfall foam and widen perimeter liner margins to catch splash.
Can I keep fish in a small waterfall pond?
You can safely keep 2 to 3 hardy comet goldfish in a 200-gallon pond. Avoid large koi fish, which require at least 1,000 gallons and heavy commercial filtration.
