Animal waste filter

A filter device for filtering animal waste, the filter device comprising:

• a tank unit;
• a filter unit;
• a first opening positioned on a top surface of the tank unit;
• a second opening positioned on a bottom surface of the tank unit;
• and
• at least one hole at a bottom surface of the filter unit;
• wherein the tank unit comprises:
• a tank cavity and a first vertical separating wall, wherein the first vertical separating wall separates a first section from the rest of the tank cavity, and the second opening is located at a bottom of the rest of the tank cavity,
• the tank unit is placed over the filter unit;
• the filter device further comprises a horizontal separating wall to separate the tank unit and the filter unit, and the horizontal separating wall is perpendicular to the first vertical separating wall of the tank unit;
• the tank unit receives animal waste through the first opening, and step-wise filtration of the animal waste is performed when a liquid level in the first section goes above the first vertical separating wall and spills over into the rest of the tank cavity and goes through the second opening, and
• the filter unit has a filter cavity wherein the filter cavity is filled with a first filter material for filtering liquid entering into the filter unit from the rest of the tank cavity through the second opening;
• the tank unit further comprises a decomposing catalyst, and the decomposing catalyst is a septic pack.