Functions: It can be installed in the backwash tank to carry out backwash to screened sewage to cattle houses or wash the feces collection tank.
功能：安装在回冲池里面，用来把筛分后的污水进行回冲牛舍或是冲洗集粪沟。
2
One day, one of Niu Lang's old cattle told him, "A fairy named Zhi Nu from the heavens is going to wash herself in the river…If you take her clothes, she will become your wife."