Residential Mound Septic System Diagram

Mound systems are an option in areas of shallow soil depth high groundwater or shallow bedrock.

Residential mound septic system diagram.

The mound with its replacement area. The difference being in a word. 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. Inside the septic tank.

Following a few simple rules like not using too much water and not. 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. Mound sewage disposal systems in maryland.

A mound septic system requires more frequent inspections and pumping than a conventional system so these are additional costs to consider. A typical mound system has 3 working parts. 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.

Sludge should be removed from the septic tank and pump chamber every 3 5 years. A well constructed properly maintained tank could last indefinitely. The following information will help you understand your mound system and keep it operating safely at the lowest possible cost. Larger sand mound systems and systems receiving non domestic sewage may require more detailed soil hydrogeologic.

Gravel stone design drain fields are relatively larger and thus may not be suitable for all residential sites or conditions. A septic system is reasonably maintenance free. How septic system works diagram 1. The constructed sand mound contains a drainfield trench.

Provide the homeowner with a layout diagram of the septic system referenced to the home and lot boundaries. The pump chamber and pump. 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. Also mound systems require more frequent pumping and more monitoring and maintenance because of the added complexity.

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. This will enable location of the tanks and absorption field for future maintenance.