Hey guys, I have some formulas from my old job that I thought might be useful for sizing larger pumps or helping to figure out suction head or your Total dynamic head . Granted I used these formulas for sizing large irrigation pumps, but I think if you use the same formulas on a smaller scale it might help.  Hope this is helpful. 

Lol Shaun you might as well have written this in Cantonese. I glanced it over and still was scratching my head.