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Servicing A Multi-Tank Septic System: What's Involved

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There are some very unique septic systems out there that utilize more than just one holding tank. These multi-tank systems have some unique advantages, such as separating solid waste from liquid waste and preventing overflow of any one tank. If you are fortunate to have one of these multi-tank septic systems, it will need to be serviced a little more frequently. Here is what is involved:

Dump Tank Assessment

The first tank is the "dump tank" because that is where all of the waste initially goes. An underground pump system pulls the waste along into the second and third tanks. Your septic system contractor will check the dump tank to make sure it is functioning properly and not overly full. A dump tank that is full at the time of the service for the either of the following tanks means that there may be a problem with the pump system, especially if the other two tanks are not that full.

More Frequent Servicing and Pumping Out

Multi-tank systems divide up the waste so that the first tank is the dump tank, the second tank is the solid waste tank, and the third tank is the liquid waste tank. This means that the holding tanks are much smaller than the single holding tank of traditional septic systems. One tank may fill faster than another, usually the liquid waste tank because people urinate more often in the day than they defecate. As such, you may need to have the liquid waste tank serviced twice a month, and the solid waste tank every three weeks to a month.

Dissolving and Disseminating Waste

A multi-tank system is also better for the environment because it does not disseminate liquid waste into a leach field. It holds it until pumping time. Every tank has its own access port on the ground surface, and each port has its own covering. At pumping time, you can request that the tanks receive chemicals needed to break down solid waste and neutralize the ammonia in urine. This also helps reduce any sewer smells that may escape around the port covers.

Tank Cleaning

Once or twice a year, it is a good idea to have your multi-tank system flushed clean. Your septic system contractor can do this. It involves pumping out all of the waste from all three of the tanks, then filling the first and second tanks with water and a cleaning solution. This sits for a bit, and then the system is switched on to move the liquid into the second and third tanks. Here it sits a bit longer, and then it is pumped out completely.

Contact a company like Kulp and Sons for more information and assistance. 


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