Suitable for feed sources that are constantly being flooded shallow coastal seas, estuaries. The first step must be to stick a wooden core, which may be found in the region include timber bamboo the major mangrove peng sort rows, there is a gap between rows is about 1 m apart, and then apply the cement hollow tube that provided cement tube (diameter 15 cm, length 40 cm plaster casting using sulfate suite.Nakhem stick tube as a clam shell 20 per 4-5 cm) wood core is going to be on at the same time, the use of wood as a base to accommodate the pipe put lean on another one to prevent pipe sinking mud. The tube can be placed approximately 1600 pipes per Rai. Currently farmers have developed large scale tube to increase the area of adhesion cement shell and the base to accommodate the larger pipe causes a long service life.
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