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  1. alfaromeo99

    Designing a weir wall

    Hi, I need to design a weir wall. The weir is to be sized to come into operation at flows of 1300L/sec and upwards. The expected extreme flows can be up to 4000L/sec, therefore my weir wall needs to be sized to remove flows from the existing system upwards of 1300L/sec to a max of 4000L/sec...
  2. alfaromeo99

    Sizing a waste water rising main

    I have a rising main of DN300. It is presently passing forward 100L/s. i want to pass more forward by installing new pumps. How is this calculated so i can still be within design requirements and not go above design limits for this particular pipe. I need to pass as much forward as possible in a...
  3. alfaromeo99

    Effects of negative and positive pressure in tunnel sewer drop shaft

    I am looking at a very large diameter tunnel connected via a vortex drop circa 700mm diameter. There are connected venting lines that also channel water in times of extreme events. How will pressure fluctuations effect the system performance (+/-)?

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