I have been replacing the pumps at work the past couple of days with monstrous jacuzzi s15ks pumps the the flow is so high(about 80 gallons per minute) that all of the ball valves are at least 50% closed, just to the point that the over flows are draining as much as they can with out over flowing. I love those pumps
While getting the pumps wired the breaker blew twice (a power outage of sorts) any how as long as your pump and all plumbing is lower than the outlet on your sump your pump will stay primed.