If you live in a rural home, chances are you rely on a septic system for wastewater disposal and treatment. As part of regular septic system maintenance, you should have a professional pump out your septic tank to ensure the smooth functioning of the system. Septic tank pumping involves removing the solids that settle at the bottom of your tank. If not removed regularly, these solids can accumulate to a level of blocking the pipe that allows liquids to flow into the leach field.