This system involves placing several porous-bottomed clay pots beneath the urinal hole, stacked one below the other.
These pots are filled with materials such as charcoal, lime, ash, and sand. As urine passes through these layers, it is purified through a natural filtration process before eventually seeping into the soil.
This method not only prevents environmental pollution but also demonstrates an advanced understanding of sanitation and ecological balance in ancient monastic communities.
