Method and system for detecting and isolating stray voltage

An electrically isolating liquid distribution system, the system comprising:

• a first valve;
• a first tank fed by the first valve;
• a second valve connected to the first tank;
• a second tank fed by the second valve;
• a third valve constructed of non-conductive materials and non-electrically-actuated connected to the second tank;
• and
• a controller configured to prevent the second valve and the third valve to be open simultaneously;
• and
• a connection to a liquid delivery device.

A method for reducing stray voltage in a liquid delivery system, the method comprising:

• providing a first storage tank;
• providing a second storage tank;
• monitoring the first storage tank;
• monitoring the second storage tank;
• filling the first storage tank when a liquid reaches a low level;
• filling the second storage tank when a liquid reaches a low level;
• delivering the liquid from the first or second storage tank to a liquid delivery device;
• controlling filling of the first storage tank and delivery from the first storage tank such that only one of the processes can occur at a single time such that an air gap exists between a liquid source and the liquid in the first storage tank when the first storage tank is delivering the liquid to the liquid delivery device;
• and
• controlling filling of the second storage tank and delivery from the second storage tank such that only one of the processes can occur at a single time such that an air gap exists between a liquid source and the liquid in the second storage tank when the second storage tank is delivering the liquid to the liquid delivery device.

A method for reducing stray voltage in a liquid delivery system, the method comprising:

• providing a first storage tank;
• providing a second storage tank;
• monitoring the first storage tank;
• monitoring the second storage tank;
• filling the first storage tank when a liquid in the first storage tank reaches a low level;
• filling the second storage tank from the first storage tank when a liquid in the second storage tank reaches a low level;
• delivering the liquid from the second storage tank to a liquid delivery device;
• and
• controlling filling of the first storage tank and the second storage tank, such that the first and second tank are not filling at a single time.

An electrically isolating liquid distribution system, the system comprising:

• a first valve;
• a tank fed by the first valve;
• a second valve constructed of non-conductive materials and non-electrically-actuated connected to the first tank;
• a controller configured to prevent the first valve and the second valve from being open simultaneously;
• and
• a connection to a liquid delivery device.

An electrically-isolated, liquid distribution system, the system comprising:

• a liquid supply;
• a first valve connected to the liquid supply;
• a tank supplied by the first valve;
• a second valve connected to the tank, the second valve non-electrically-actuated and constructed of non-conductive materials;
• a liquid delivery system supplied by the second valve;
• and
• a controller configured to ensure one of the first valve and the second valve are closed at any point in time such that an air gap exists between the liquid supply and a liquid in the tank when the tank is delivering the liquid to the liquid delivery system.

An electrically isolating liquid distribution system, the system comprising:

• a first valve;
• a first tank fed by the first valve;
• a second valve connected to the first tank;
• a second tank fed by the second valve;
• and
• a controller configured to ensure one of the first valve and the second valve are closed at any point in time;
• and
• a liquid delivery device connected to the second tank.