Although there are a lot of people who understand how their septic system works, some of them might not be familiar with the drainfield in the system. Drainfields, or leach fields, are wastewater facilities that are located below the surface. This is used to remove any impurities and contaminants from the liquid that come up after the anaerobic digestion in the septic tank . Most organic materials in the liquid are catabolized using a microbial ecosystem. Septic system failures are usually caused by issues in the leach field. The whole system relies on the leach field to filter and remove the wastewater. Whenever there’s a build-up of wastewater or solid waste at the bottom of the leach field, the soil gets clogged up and in turn, prevents proper drainage. Most of the common causes of the malfunction of leach field include: Damage from the vehicles on top of the field of construction Water runoff from excessive snow or rainfall Old age Draining grease, chemicals, paints, a...