It is builder floor three occupants and there is no way to go to backyard where 5 manholes are meant. Everymonth manholes and drain pipes blocked and dirty water gushes in our bathrooms and bed rooms. Everytime we are calling sweeper and giving way from our drawing room living room and bed room to reach out to maholes. No one is contributing their share. We are in serious trouble how to tackle this problem an d builder is living on 2nd floor is showing his muscles power to us. Pl advice. Out privacy has no meaning. Our house become a thorough way for sweepers.