LOL I'd ask first off how many drains to sump are there on the tank and then what size .. The 1 in lines most tanks this size have and then as a rule only a single drain to sump will not handle much more then 500 GPH really and if its set on Fall and a straight shot with now drain silencing devices and let to vent its self and suck air then you may be can get to 650 GPH trough a straight to sump with a 1in. pipe.. Maybe ! Lots of variables control that.
Then I say why over power a pump ? I mean a Peter Built can pull a 900 pound John boat but why ? when a small P/U truck can do it just as well and why waste money on paying for a 1800 or 2400 and only use a 1/4 of what it can do by throttling it back ? to match the systems ability to drain the water through the little pipe . Not to mention the wasted pump money up front then you create back pressure and cavatation of the impeller and then a restricted pump makes a lot more heat and eats a lot more electricity.. And the caveatting eats impeller and chevron seals up. And will cause the impellers to shake the magnet to death and they will score the pumps housing.
If you understand pumps and hydraulic principles then you know what over sizing a pump does. And it is all just a waste 4 x's the tanks volume is what many found out yrs ago with the new Berlin methods less is most times more. The 135 I posted is still running with a Mag 12 or 14 ? since 1998 and it looks better now and its still clear as a bell _________ Some of the world's greatest feats were accomplished by people not smart enough to know they were impossible (Doug Larson) |