concentrated than any of our other formulas. It is designed to restore sensor function in older holding tanks where long-term build-up has caused chronic sensor or level gauge... malfunction or in newer tanks where chemical use has caused premature build-up. Sensor Power will safely & effectively clean sensors, tank walls, valves & piping in black & gray tanks. It..., natural chemical compound enzymes have a limited effectiveness as a waste digester & cleaner. Bacteria on the other hand, are living organisms capable of rapidly reproducing...