Concers of a Basin out of service
Concers of a Basin out of service
(OP)
Hey guys,
As an overview, there are series of clear water basins which gravity feed a pumping station. One of the clear water basins may need to be temporarily put of of service for repairs. The big question is, how will putting the clear water basin out of service affect the pumping station, if at all. Increased head and flooding are some of the concerns. My thoughs, without getting into great detail are that since the pumping station is gravity fed, if the pumps are turned off, the station would flood regardless of the basin being in service or not. The overall flooding elevation remains the same in both senarios, the only difference being is that the water would now flow through a by-pass line, as opposed to both the by-pass line and the lower basin to reach the pumping staion. Any thoughs are greatly appreciated. I attached an illustration below to help describe the situation.
As an overview, there are series of clear water basins which gravity feed a pumping station. One of the clear water basins may need to be temporarily put of of service for repairs. The big question is, how will putting the clear water basin out of service affect the pumping station, if at all. Increased head and flooding are some of the concerns. My thoughs, without getting into great detail are that since the pumping station is gravity fed, if the pumps are turned off, the station would flood regardless of the basin being in service or not. The overall flooding elevation remains the same in both senarios, the only difference being is that the water would now flow through a by-pass line, as opposed to both the by-pass line and the lower basin to reach the pumping staion. Any thoughs are greatly appreciated. I attached an illustration below to help describe the situation.





RE: Concers of a Basin out of service
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Concers of a Basin out of service
2. Your sketch shows the finished water basin to have a higher elevation than the clear water basin. There may be a concern for flooding from the higher basin.
RE: Concers of a Basin out of service
Please see the new diagram attached showing the location of a pressure control valve. Just looking for advice on how the PRESSURE would be affected between the two drawings. Neglect downstram head loss...I believe it will increase.
RE: Concers of a Basin out of service