| 摘要 |
The present invention relates to creation of an environmentally friendly ecological pond having a backwash cleansing block and a pump chamber and particularly, to creation of an environmentally friendly ecological pond using a backwash cleansing block to be highly efficient in water purification and economically efficient by enabling users to cleanse a cleansing block and to easily repair the cleansing block in order to keep the water stored in a lake or in a pond clean. |
