Quote Originally Posted by PoolDoc View Post
your 2150 GPH rated pump pumped an actual 1560 GPH, or about 75% of it's rating.
True. I kinda wonder what it would flow when freshly backwashed. I also believe it cannot be very efficient, because when the filter basket gets cleaned, and is full of air, the pump won't prime. The air bleed valve at the top of the filter basket has to be opened to release the trapped air.

As for the meter, 116V x 4.2A = 487.2W. The meter is reading 482.7. Is that difference due to significant figure rounding, or true power?

AND, the plumbing got done for the new Pentair/Hayward system. I have to get more wire, we decided to move the pump/filter to a different location, farther from the power source, and I need wiring that is about 4' longer.