Make a drainage system to extract the bile and water waste and create a clay catchment on the left to reduce the contamination of water from the leaves ground.
A drainage system to separate water and wastewater apart. And creating catchment left on the ground. To reduce contamination of water from the soil left behind.
Preparation of the drainage system to separate the water and wastewater from each other. And create a reservoir water on dumping. To reduce the contamination of the water from the waste soil.