The majority of Metro Cebu population (80.4%) owns pour-flush toilets, the remaining population uses flush toilets (4.4%), pit latrines (8.7%) or do not have any toilet at all (6.5%). Only 3.4% of households evacuate black w'ater (i.e. wastewater w'ith human wastes) through sewers, while 86% is evacuated into septic tanks and 10% through drainage and therefore have no treatment. In addition, only 7% of grey water (i.e. wastewater without human wastes) is evacuated through sewerage, most being evacuated through drainage with no treatment (80%) or into septic tanks (13%) (Figure 3.3).