Waterfall Pump Questionaire
Instructions
Three variables are needed to determine the proper pump for a waterfall project:
1. VOLUME:
To determine volume either enter the "Flow/stream depth", "Weir/stream width" and "Bottom type (streams only)" or enter "Volume (GPM)". By entering "Bottom type", a stream, not a waterfall, is assumed. Usually, a stream requires a greater volume of water than a waterfall to maintain a specified flow depth. "Volume range" refers to the +- percentage of the volume desired. If "Volume" is 500 GPM and "Volume range" is 10%, "Volume" is between (500 - 10%) and (500 + 10%) or 450 GPM and 550 GPM.
2. ELEVATION:
Elevation is water surface to water surface height, or the highest point water is pumped. Finally, describe the piping system.
3. PIPE DIAMETER:
Enter "Pipe diameter" and "Pipe/stream length". Enter the number of each type of fitting. Finally, enter "Flex hose diameter", "Flex hose length", "Check valve" and "Power". "Flex hose diameter" is also check valve size. Angel pumps can accommodate 4" and 6" check valves. Niagara pumps use 6" and 8" check valves. Yosemite pumps use 8" check valves. Flexible hose must be used for sled mounted units. Flexible hose should be used on all other units.
Suggested Pipe Diameter
Max. GPM - Pipe Diameter
50 - 2"
100 - 3"
200 - 4"
400 - 6"
800 - 8"
1200 - 10"
1600 - 12" |
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