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Fire Hydrant Flow Calculator © 2006, Willis Lamm
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psi before flowing | |
Residual: | psi while flowing |
Pitot: | pitot gage reading |
Diameter: | size of opening tested |
This hydrant is flowing: | GPM from the test outlet |
Projected available hydrant flow: | GPM Note 1 |
2nd Static: | secondary psi before flowing |
2nd Residual: | secondary psi while flowing |
The main can be expected to flow about: | GPM |
Notes:
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