Part 3/6:
The experimental setup is quite detailed. The circuit features a green wire that maintains tension on the components and two grounding rods placed in the soil, each 20 inches deep. Paul has experimented with different grounding rods—zinc-plated versus plain metal—and found no meaningful difference in performance. In his tests, whether using one or both grounding rods, the voltage results remained consistent, implying that ground depth and soil contact are more critical than the metal composition of the grounding rods.