Filter Sewer / Sewer

With a rise in the interest of each local government in public facilities, they are investing a lot in the improvement of urban environment, but there is still a lack of improvements of drains. Although a drain is an important system to discharge rainwater smoothly, it has lots of problems. For dealing with these problems, a drain is proposed to reduce damages by reversal of water when it is clogged with lots of foreign substances or fallen leaves during the heavy rain or rainy season, to be easy for cleaning to improve the surrounding dirty environment by bad smells and to improve several situations.