Residential Mound Septic System Diagram

Gravel stone design drain fields are relatively larger and thus may not be suitable for all residential sites or conditions.

Residential mound septic system diagram. Inside the septic tank. A well constructed properly maintained tank could last indefinitely. Also mound systems require more frequent pumping and more monitoring and maintenance because of the added complexity. If you have a mound system you will likely need to have it pumped out annually compared to a conventional system where you may only need the waste pumped out every two to three years.

The manual has been prepared for use in department sponsored training programs and applies to small residential systems with five bedrooms or less. A septic system is reasonably maintenance free. The following information will help you understand your mound system and keep it operating safely at the lowest possible cost. Mound systems are an option in areas of shallow soil depth high groundwater or shallow bedrock.

Following a few simple rules like not using too much water and not. The middle liquid layer effluent then exits the tank and into the drainfield. While a conventional septic system uses only the septic tank to separate solids fats and grease an aerobic treatment unit atu uses oxygen infusion for digestion rather than the anaerobic process. There are conventional septic systems and then there are the more complex aerobic septic systems.

The constructed sand mound contains a drainfield trench. Mound sewage disposal systems in maryland. The mound with its replacement area. Provide the homeowner with a layout diagram of the septic system referenced to the home and lot boundaries.

How septic system works diagram 1. Depending on the system design and the local cost of sand and gravel a mound system can add 10 000 or more to the price of a conventional system often costing over 20 000 in some areas. A typical mound system has 3 working parts. Larger sand mound systems and systems receiving non domestic sewage may require more detailed soil hydrogeologic.

Sludge should be removed from the septic tank and pump chamber every 3 5 years. A mound septic system requires more frequent inspections and pumping than a conventional system so these are additional costs to consider. In its basic form a septic system consists of a septic tank where solids settle and decompose and a drainfield where liquid discharged from the tank is treated by bacteria in the soil. The difference being in a word.

A septic system is the most common method of sewage treatment for homes and businesses that are not connected to an area wide sewage system. However the leach field the underground area where all of the sewage drainpipes are located will most likely require some treatment or perhaps replacement after about 15 to 20 years of service.