I’ve been running my pond with a sump I had laying about. It works but it’s noisy and I don’t trust it. So searching. Found a PondPulse 4200 gph that seems to fit the bill. Budget 200-250. Pond is Very simple above ground. 355 gallon with filter full. 15 ft 3/4 with 5 high into the gravity system. Dimensions of this pump fit in my sump house. Curious if anyone is familiar with pondpulse or is it just another knockoff.