The Topol-ECO group of companies has been manufacturing septic tanks for 13 years. Septic tanks “Tapas” are characterized by a high degree of water purification, they do not require the purchase of bacteria, and the lightweight housing reinforced with stiffeners will last at least 50 years. One of the distinguishing features is the possibility of installation and round-the-clock technical support from the manufacturer. Negative reviews about the Topop septic tanks and positive points are presented on this page.