DAUZUC BIOLOGICAL FILM TREATMENT PLANTS IN THE BUILDED WETLAND, at the price of septic tanks. Respect the legal norms in force, see http://www.foseseptice-epurare.ro/avizare-anar-documentatie/ ATTENTION: ENVIRONMENTAL NOTICES PROVIDE THE USE OF VANTABLE SEALED BASINS AND NOT SEPTIC TANKS. VANTABLE SEALED BASINS, SUCH AS THE ONE USED WITH DAUZUC, DO NOT HAVE AN EXHAUST HOLE. THOSE WITH THIS HOLE ARE SEPTIC PITCHES. AT DAUZUC THE EVACUATION OF THE TREATED WATER IS DONE BY EVAPO- TRANSPIRATION, NO DRAINAGE AND PERIODIC EMPTYING IS NECESSARY.