Alright so I said I would never do this, but perhaps never was too strong of a word...
I posted this down in the Engineer's forum, but I'm not sure it gets the visibility that I need to get a quick answer.
We are having a debate on adding 5" supply hose(no cost we already own it as extra) to one of our engines that is currently all 3". Seems that one of my members thinks that it is a waste because there is nothing you can do with 5" that you can't do with dual 3" lines. Problem being some people take what he says as the final word without ever looking into it further. In my dealings with him he is open to comments, correction, etc as long as you have facts to back it up.
I am by no means a water flow calculation guy so I need you guys to crunch some numbers for me and justify either side of the argument, but I need you to elaborate how you came to your results.
Also keep in mind that this is simply shifting the hosebed divider over and adding 500' and keeping the 3 inch so there are options, since no hydrant in our town is further than 500 feet apart and we have a second due engine with 1200' coming in.
Help a guy out will ya!?!?