The more fall you have the more force and velocity the water will have hence more power. If I understand lmoore's calcs, the "H" would be the height between the exit of the pipe and where it hits the wheel. It might even include the elevation drop while in the pipe. The larger "H" is, the more horsepower you get out of it.
The only thing I can say about the water hitting the wheel at a particular clocking is it depends on the angle at which the water is hitting the wheel. If the water is dropping straight down, then 10 o'clock would sound about right (maybe closer to 9:30..IDK for sure), but if the water has more of a horizontal flow, below 9 would make more sense.
Last edited by Quarter Acre; 06/16/22 08:03 AM. Reason: typo
