Thanks for the advice on the B&G System Syzer, but I already have that. What I'm looking for now (since I've decided to go the route of creating the excel spreadsheet) is an equation that would let me calculate the viscosity and density of propylene glycol solution with the concentration...
I was wondering if anyone knows where I could find a good excel spreadsheet for calculating the pressure loss in a piping system. I've been looking through the forums, but can't seem to find anything that matches what I'm looking for. I do a lot of Geothermal systems, and the biggest problem...