It is very important to clean your septic tank periodically to remove the accumulated solids and scum before they are forced into your leaching system. During the cleaning of your septic tank we also inspect for leaks, cracks, water level, inlet and outlet baffles, and its general condition. Septic tanks should be cleaned on an average of every two years. Some septic tanks should be cleaned more often because the septic tank is very small, the septic system is very old, or very heavy usage.