The Auto Decant System is designed to automatically decant water from oil reservoirs. Fluid is pumped from the bottom of the reservoir into the system where it is filtered and separated using a series of chambers and gravity. The processed oil is pumped thru a filter to remove any remaining contaminates before going back into the oil reservoir. Waste water is discharged thru a separate line. The Auto Decant System can be run in a continuous or timed mode, 24/7.