Before installing a ground system, the pH of the soil should be measured. This measurement will determine the best material to use to maximize its longevity.
Measure the pH of the soil at the depth the grounding radial system will be placed
The pH value will determine whether copper is the best material. Copper works best in an alkaline environment (pH of 7 or higher). Aluminum, tin and or galvanized metal work best in an acidic environment (pH of 7 or lower).