"Ned Simmons" wrote: If pipeline's high point is higher than the second
lake (for example,
the lake is in a deep bowl), the difference between the potential
energy of the water at the high point and at 405 feet is available at
the discharge.
^^^^^^^^^^^^^^^^^^^^^^^
I see only two possibilities: 1.) The OP is confused about what they are
doing. 2.) Ned Simmons is correct.

I believe it must by #2. If they have to pump the water over a hill more
than 32 feet high, it will not be possible to just run it as a siphon and
recover the energy--hence, a proposed power plant at the low point.