For a summer residence, cottage or even for a recreation center, the septic tank AK 47 will become the optimal treatment station. Installation can be carried out in any soil, and pumping with a cesspool machine is not required, because the quality of water treatment reaches 98%, which corresponds to the standards. System features - no unpleasant odor, complicated maintenance and a 50-year warranty for the case. Positive and negative reviews about the septic tank AK 47 will tell about its advantages and disadvantages.