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UER Forum > UE Encyclopedia > Weir (Drain) (Viewed 5625 times) Entry: Weir (Drain) originally posted by trent A weir is basically a small dam meant to contain water/sewage back until a certain level where it when overflows over the top of the weir. These are often used in drains to control flows. An example of using a weir in a drain would be to block the the path of the water flow so that it continues through the drain system. But during a major rain storm (say a 10 times a year type of big storm) if all the flow stayed in the drain it could potentially damage the system due to too much pressure. The weir is constructed so that 355 days of the year all flow continues in the drain, but for the 10 days with potentially damaging rain fall the water level will surpass the weir releasing the drain system of it's addition pressure that it cannot handle. Modify this entry  | Remove this entry UER Forum > UE Encyclopedia > Weir (Drain) (Viewed 5625 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 203 milliseconds. Since June 23, 2002, a total of 739221442 pages have been generated.