Dear All,
I talked to an electrical engineer, friend of mine. His conclusion is that the electric motors must be different between the 1260 and 1262 pumps, and here is why:
With everything else the same, wattage usage increases with resistance, i.e. if the filter clogs up or the outlet is restricted, then the motor will use more watts to power through. The opposite is the case if you decrease resistance, as would be the case when you change the volute cover to accommodate higher flow.
But it is impossible to turn a lower wattage pump into the 80 W 1262 by simply changing out hardware.
You may increase flow by changing to a lower resistance cover. Your wattage will go down. But you will not have the high torque of an 80 W pump. You will not be able to power through as the filter clogs, you will not have the power to pump as forcefully as the 80 W pump.
It all depends what you're looking for in a filter pump. Just like with cars, there's a place for four cylinders with turbocharger, and there is a place for a V8. And everything in between.
