That seems like an effecient pump. Mine is like yours, although I believe it's a 1 hp pump and it only gets 25-28 gpm. It may be 3/4 hp tho, I can't remember. I only remembered the gpm figure.

www.hoosierpondpros.com

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).