Chennai Metropolitan Water Supply and Sewerage Board is taking all the necessary measures to ensure the sewerage system functions properly. Officers of the Board have noticed that the solid wastes and plastic wastes entering into the sewerage system through inspection chambers and through manholes causing obstruction of the flow of sewage in the pipes, which results into sewage overflows sometimes. The solid waste and other solids from the establishments such as hotels, restaurants, canteens, Kalyanamandapams, sweet stalls etc. enters into the sewerage lines through inspection chambers and then enters into the manholes of the sewerage system. This could be avoided if all the establishments follow the system given below.

The diaphragm chambers are the structures constructed on the sewer line inside the establishment premises act as a filter to retain the solid wastes and prevent such entry of the solid wastes into the sewerage system which has to be cleaned periodically. Construction of the diaphragm chamber costs about Rs.15,000/- and will be constructed by any of the civil contractors/masons.

The diaphragm chamber ensures free flow of liquid wastes in to the sewerage system. Therefore all the establishment owners are requested to construct diaphragm chamber in the internal sewer line arrangement to avoid entry of solid waste into the sewerage system.

Similarly gratings are to be fixed in the terminal inspection chamber of the multistoried buildings in the internal sewerage system to prevent entry of solid wastes such as sanitary napkins, plastic covers and clothes into the sewerage system. Therefore all the residents of the multistoried buildings are requested to fix gratings in the terminal inspection chamber of the internal sewage disposal arrangement

Sewerage system in certain areas also chocked due to the existence of the cattle yards. The cow dung mixed with straw is discharged by the owners directly into the sewerage system from the cattle sheds which causes frequent obstruction/block in the system resulting overflow of sewage from the system. Hence the cattle shed owners are requested by the Chennai Metropolitan Water Supply and Sewerage Board to avoid discharging of cowdung into the sewerage system and advised to construct Diaphragm chamber inside the cattle sheds. Alternatively they are advised to setup Biogas plants to earn revenue out of it by approaching the concerned agency.

Co-operation in this regard is solicited by Metrowater, said Managing Director Dr. K.Gopal, I.A.S.

PUBLIC RELATIONS MANAGER