The average home with two baths and three occupants will produce over 85,000 gallons of wastewater annually. That is 250-300 gallons per day! A septic tank is a living filter which separates scums and solids and pretreats wastewater before it flows out into the drainfield for final purification. It takes 24-48 hours for this process. Even a good system which isn’t cared for may become a neighborhood health hazard and an expensive problem. Failed systems may cause ground and surface water pollution and costly property damage. It is important to maintain your septic system.