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Hi All, I am trying to justify the use of spreadsheet calculation instead of hydraulic model(Info Works or similar) for hydraulic analysis of a small exisiting catchment of sewer diameter 150mm. This query is in relation to a project in the United Kingdom. The project involved hydraulic...

Thank you all for your response.

Dear All, I have designed a sewerage network of a small catchment(less than 200 hectare) using maximum value of the run off based on Rational Formula. The pipes were sized using Manning Equation. Now I am trying to understand the merits and demerits of using Rational Formula and Manning...