Materials matter: copper resists corrosion and conducts well

https://www.scribd.com/document/1034242800/How-to-Integrate-Electroculture-with-Drip-Irrigation-173518

Materials matter: copper resists corrosion and conducts well, while galvanized steel is cheaper but heavier; choose durable wood or bamboo for masts, and avoid treated lumber that may leach chemicals.