Septic tank is especially suitable for objects where irregular sewage generation is expected (for example, summer houses). SNIGO SEP equipment consists of two components – the SNIGO tank and the infiltration tunnels into the ground. No electricity is required to operate the system. As the effluent flows into the septic tank, which is divided into two parts, the flow rate decreases and the effluent breaks down into fractions. Grease and other lighter-than-water components accumulate in the upper water layer, while heavier contaminants settle to the bottom. The treatment rate of effluent treated from the septic tank is about 70%. Further wastewater treatment takes place in special infiltration tunnels, where the treated wastewater is infiltrated into the soil through a layer of natural biofilter (crushed stone, gravel, sand), thus decomposing the remaining pollutants.

It is recommended to connect the septic tank to the pipeline no further than 6 m from the buildings to maintain the optimum temperature in the sewage. The infiltration system can be installed in soil with a light mechanical structure and good water permeability. The distance from the infiltration field to the drinking water source must be at least 30 meters and the distance from the bottom of the filter layer to the groundwater surface must be at least 1 meter.
The septic tank SNIGO SEP has been tested and certified by a notified TÜV laboratory. Tests have confirmed its compliance with the standard EN 12566-1, therefore the product is marked with the CE mark.