The simple fact is, amps are going to jerk the water molecules back and forth. Is this what Stan was doing? If he used a rotating electric field, as a particle accelerator, then amps would play a role. The moving water molecules would dissociate on impact with an electrode or other molecule. But if the molecules are to remain stationary, so that they can be stretched apart with potential pulses only, then amps would have to be minimized. Was he doing one thing and saying something else?