Waste water and put into a cement pond size 40 cm radius 50 cm high, with a volume equal to about 10000 removed cm (enter until the water in the pond has a height of approximately 40 cm) The number of 15 wells.
Then the water was put into the cement pond radius 40 cm high, 50 cm with an equal volume of about 10000 cubic cm (put the water in the tank has a height of about 40 cm) of 15 wells.
The wastewater is put into cement pond radius size 40 cm high. 50 cm, with equal volume about 10000 cubic cm. Until the water in the well level (with height of about 40 cm) were 15 pond.