Ungrounded: Thanks for your suggestion but I decided that 6 inches on 22 feet of head makes non practical difference. The additional charge would be 0.14 amps over the 6 amps I am getting now, and it would be very difficult to inspect the Pelton runner without turning the whole thing over. Right now I can see and service both, the generator (F & P washing machine PGM) and the water side without moving the box at all. All I need to do is open the inspection covers and I have very good access to everything. The design is following the owner's idea of Ecoinnovations in Australia, and he does makes his also horizontal as I did.
However, thanks for you suggestion.
Wilson