Good ground for pool maintenance is a type of clay / loam , not porous and contains enough humus . The type of soil can hold a large mass of water and does not leak so it can be made bund / wall pool .
The slope of the land is good for making the pond ranged from 3-5 % to facilitate irrigation ponds by gravity .
Carp can grow normally , if the location of the maintenance is at an altitude of 50-400 m above sea level .
Water quality for maintenance carp pond bottom should be clean and not muddy , not too muddy and polluted toxic chemicals , and oil / sewage plant .
Pool with a depth of 70-100 cm and irrigation system that flows very well for growth and physical development of carp . For maintenance has traditionally specialized in swimming , water discharge allowed is 3 liters / sec , while for maintenance polyculture , the ideal flow of water is between 6-12 liters / sec .
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