Electrical transmission towers support wires that carry electricity from power plants to homes. Electric current is electric charge in motion. It can take the form of a sudden discharge of static electricity, such as a lightning bolt or a spark between your finger and a ground light switch plate.
To clean stubborn stains from your toilet bowl, first if you have a wet/dry vacuum, suck out all the water so you have a virtually liquid free bowl. Then, pour in hydrogen peroxide. It will get rid of all stains and lime. I would suggest using 1/2 a bottle for each cleaning. You might need more or less.
You can remove hard water deposits/scale by running one cycle of your dishwasher (empty) with distilled white vinegar. Add 2 cups of vinegar to the bottom and turn the machine on to an energy saving or low wash. Stop the machine mid-wash, so the vinegar can set on the bottom and work.