I am trying to perform the automated fire flow analysis on WaterCad. I am trying to find the fire flow available at all the junctions at a specific hour in time if you need a 20 psi pressure residual at all the junctions. I was following the tutorial and I know you need to specify a needed and upper limit fire flow. How would you determine what these are if you only have the demands at the junctions and tank level information.
Also, when I tried running it with some number, the fire flows are calculated using steady state conditions. However, I need to find the fire flows available at a particular hour. How can I find this?