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UER Forum > UE Encyclopedia > Lift Pump (Viewed 4575 times) Entry: Lift Pump originally posted by ApoXX [last edit 3/22/2004 8:38 AM by MacGyver - edited 1 times] In a typical drainage scenario, the tunnels will follow downward sloping terrain, allowing the force of gravity to move the water into a river, swamp, or lake. In very flat places, such as North Dakota, the drains still need to be built sloping slightly downwards, but this trajectory quickly ends up deep beneath the target body of water. The solution is to have a powerful pump placed every here and there along the path of the drain to lift the water back up a few feet so it can flow down the next section of pipe or ditch without getting too deep. The particular pumps in Fargo are electric and run all the time except in dry or frozen conditions. In the event of a flash flood (any moderately heavy rain counts), the pumps are not able to handle anywhere near the full volume of water, so there are large pipes that flow straight through to the higher section on the other side. Massive gate valves open up, and the deep floodwater bypasses the lift pump on it's own power. Once the level of the water drops back down below the bottom of the overflow pipes, the pump again becomes solely responsible for passing the water. click to view Big thanks to "Macgyver" for providing information and diagrams! edit: clarifications --Macgyver Modify this entry  | Remove this entry UER Forum > UE Encyclopedia > Lift Pump (Viewed 4575 times) Add a poll to this thread This thread is one of your Favourites. Click to make normal. Click to make this thread a Favourite. This thread is in a public category, and can't be made private. All content and images copyright © 2002-2024 UER.CA and respective creators. Graphical Design by Crossfire. To contact webmaster, or click to email with problems or other questions about this site: UER CONTACT View Terms of Service | View Privacy Policy | Server colocation provided by Beanfield This page was generated for you in 89 milliseconds. Since June 23, 2002, a total of 739096650 pages have been generated.