Let's say I don't know a thing about science and just look at my water bill. Three months is $15.18 for 4300 gal.
That is $3.50 for 1000 gallons. With my 50 gallon daily usage that amounts to 17 cents a day. If all the cost was
for pumping, that is not a lot of energy. From another mailer they tell me that less than half the water they pump
is ever billed. They have a lot of leaky pipes under the street and they are working hard on that. Now the energy
is down to 8 cents a day if you can get it all back. Water isn't complex and I'm sure they just turned on the pump,
turned the lights off, shut the door and went home. Even so, I wonder how much I would invest in order to get back
8 cents a day.