If the mound system has been properly designed and if a few simple maintenance procedures are followed, it will last for many years. As with any septic system, poor maintenance can result in system failure.

The septic tank and dosing chamber should be checked for sludge and scum buildup and pumped, as needed , to avoid carryover of solids into the mound. Screens or filters can be used to prevent large solids from escaping the septic tank.

The dosing chamber, pump, and floats should be checked annually and replaced or repaired as needed. It is imperative that the septic tank and dosing chamber be water-tight. Electrical parts and conduits should be checked for corrosion.

Follow all of the manufacturer’s operation and maintenance instructions. All equipment must be tested and calibrated according to manufacturer specifications.

Because it is more complex and more costly than conventional systems, regular maintenance is even more important for mound systems. You can avoid expensive repairs - not to mention headaches - if you follow recommended maintenance procedures.

( Source of listing: Virginia Cooperative Extension Service )
1. If the system is not currently equipped with observation tubes, install them. Observation tubes allow inspection of the tank without unearthing and removing the access port.
2. Routine pumping of the septic tank and dosing chamber should be done at least once every three to five years, depending on the size of the septic tank. Tanks should be routinely inspected on a yearly basis to determine the rate of sludge accumulation.
3. Regularly inspect both the septic and dosing tanks using the observation tubes. Any progressive increase in the depth of the water in the tanks could indicate a problem.
4. Equip the dosing chamber with a high-water alarm to be alerted to potential serious or sudden problems with the system.
5. Maintain grass or other vegetative cover over the mound to maximize water uptake and prevent erosion.
6. Avoid traffic and construction on the mound or on its slope. This could compact the soil, thus reducing the absorptive capacity of the soil.
7. Grease, oil, solvents, and toxic chemicals should never be poured or flushed down the drain, as these materials may damage the system.
8. Take steps to reduce household water use. Also avoid putting any biodegradable, such as plastics, feminine products, condoms, diapers, etc. in the wastewater system.
9. Discharge of water from house gutters should be directed away from the absorption mound.
10. Keep a diagram showing the location of the septic tank, dosing tank, and absorption field in relation to the house.

Other Topics: Sewage Protection Program | Landscaping for Mound Systems | Mound Systems | Alternative Household Cleaning Solutions | Why Systems Fail | Caring for Your Septic System - Do's & Don'ts

Source of information in part by the National Small Flows Clearinghouse, West Virginia University (800) 624-8301

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