I have the same pump . nice pump haw. i mounted mine on the transom in the middle. It is up about level with the tanks or a little above. It is best to mount as low as possible if your tanks draw from the bottom (mine do) there for the pump will have less work load on it. but if i remember your tanks draw from the top so i don't think it will matter as long as its not way above the tanks.. I have not had mine in the water yet but I have romped it up to 6000 in the driveway and it had plenty of pressure. 60 psi is where its set at. didn't even budge. hope this helps.