Two Pass InfoSewer Solution

Two Pass InfoSewer Solution
  • The d/D you are Mapping is from the 1st pass or the solution in which the manhole loads are calculated and the program estimates the flow in the links – the flow gives the value of d/D which you are mapping. 
  • The HGL plot is plotting the adjusted d/D which is the result of the 2nd pass of the solution, this pass estimates backwater, surcharge and pressure and often the value of the Adjusted d/D is higher than the 1st pass value of d/D. 
  • The Adjusted d/D is a better way of finding those pipes that are more than 0.75 full.

Adjusted d/D is a better way of finding those pipes that are more than 0.75 full




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