On 7/24/2014 11:59 PM, micky wrote:


So a 50% increase in the power of the motor yields only about a 10%
increase in GPH. The next 50% yields a 7% increase with Wayne.

With ACE, 50% increase yields a 9% increase in GPH.

Why is this?

First, be sure they are all showing the ratings for the same
circumstances (head or lift). As power goes up, the amount of water
increases, but on a curve. Just as you car fuel mileage is not twice at
30 mph as it is at 60 mph.

I'd consider getting a second pump rather than a larger one. With
redundancy, you always have some ability to move water if one fails.
That is common practice in critical manufacturing operations. We may
lose capacity, but we don't shut down.