Skip Nav Bill’s Quality Electric, LLC shares electrical safety information in regards to pool wiring systems that can help prevent deadly electrical shock with focus on the 12 volt continuous grounded system versus a possibly deadly 120 volt system that may not be grounded. It is vitally important to be sure that your pool’s wiring is done properly by a licensed electrician and that it’s properly grounded to help avoid deadly electric shock. Stay Electrically Safe and Smart as a homeowner and pool owner. Special Thanks to Miami.cbslocal.com, to Gary Nelson and to Walter Sanders for the article, Pool Electrocutions Highlights Wiring Safety Issues. 