This picture shows the water and HHO flow to and from the cell. The blue arrows show the water flow to the bottom of the cell from the water tank located above. The yellow arrows show the HHO flow from the fittings at the top of the cell to the water tank. As the HHO leaves the cell it carries water with it creating a vacuum effect inside the cell which causes water to be drawn in the fittings at the bottom from the water tank.

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