Septic tank filter system

A septic tank filter system, comprising:

• a tank comprising an inlet and an outlet, wherein the outlet is disposed on the tank below the inlet to enable a flow of wastewater to be gravity fed from the inlet to the outlet;
• and
• a first filter positioned in the tank, the first filter comprising:
• a first frame,
• a first filter media disposed on the first frame, the first filter media operable to filter the wastewater of waste material as the wastewater passes therethrough, and
• an overflow opening disposed on a top portion of the first filter, wherein a bottom of the overflow opening is located above the tank outlet and below the tank inlet;
• wherein when the first filter media is not clogged, a level of the wastewater in the tank remains below the overflow opening;
• and
• wherein when the first filter media is clogged, the level of the wastewater in the tank rises until the wastewater flows over the overflow opening.