Waterfall Width and Depth
The cobble size effects the amount of water displacement in a stream and will therefore effect the amount of water required to fill the stream channel. By adding more rock to the stream-bed, more water storage is required. Berkey Waterfall & Stream Kits are designed to be installed with approximately 1-1/2" gravel depth which provides a realistic look without require excessive water storage. There are applications where deeper rock will be reqired. Please contact us for a custom package for streams with deeper rock depth.
Use the chart to the right to determine the approximate volume of water required to deliver the the waterfall depth desired for the feature. The chart is based on gallons per minute (GPM).
To increase the waterfall width while keeping the water depth consistent, more water storage and a larger pump may be required. Please contact us for a custom package if adjustments outside of the kit's range are desired.