hydrant_testing_101
Civil/Environmental
- Jun 15, 2020
- 3
This may be a stupid question, but we recently did some hydrant testing where we knew the previous test results showed an issue with getting adequate pressure drop from the static to residual pressure. Therefore, we opened the 4" port to test the flow of hydrants where we were able to. However, where we were not able to open the 4", we attached a special adapter to the 4" which ran a 25' 4" hose to a 4"x3"x3" tee and flowed into the street. We also opened the 2.5" nozzle and measured the pitot pressure out of that and recorded that as our pitot pressure.
Is it possible to calculate the hydrant flow with these parameters?
I realize it is not ideal and we should have stuck with opening the other 2.5" nozzle as opposed to the 4", but I don't want to go back out and re-test these if we don't have to...
Any information anyone can provide would be greatly appreciated.
Thanks
Is it possible to calculate the hydrant flow with these parameters?
I realize it is not ideal and we should have stuck with opening the other 2.5" nozzle as opposed to the 4", but I don't want to go back out and re-test these if we don't have to...
Any information anyone can provide would be greatly appreciated.
Thanks