@Brew12 Hey great thread, i often wondered about all the talk of stray voltage around here. In an earlier post you mentioned a reduced treat in a freshwater systems. In ultra Pure water there is nothing to conduct electricity it's the contaminants or minerals that conduct. But Water flow through Plastic piping/tubing creates friction which causes the plastics to give up electrons and can build to lethal levels and why NEC Greatly expanded ARTICLE #680 Pools, Fountains, and Similar ( decorative pools ) specifically subsection 680.26 7C Pool Water, it goes on to say the water itself must be bonded with a minimum of conductive surface area of 9"squared. It's my understanding that PVC is one of the worst culprits in shedding Electrons ( Master licensing instructor ) and may explain why some see problems while others don't . I see a lot of pvc in the Build threads. Thanks for the link for the titanium ground probe, I wondered how to ground without using a exposed copper or zinc anode.