Papaya seed extract was tested as a natural way to clean dirty water from Tulte River in Ethiopia. The researchers found that using Papaya seed extract as a coagulant can remove dirt and harmful bacteria from the water, making it safer to drink. By testing different methods, they discovered that the best results were achieved with a dosage of 20 ml, acidic conditions, and 60 minutes of mixing. The Papaya seed extract was able to remove 96.32% of total coliform and reduce turbidity to an acceptable level for drinking water. This study shows that Papaya seeds could be a useful and cost-effective way to treat water in rural communities.