Details: cleaning and desilting of gully trap chamber, including removal of mixed with earth etc. and disposal of same, all as per the direction of engineer-in-charge. cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 psi for sewer line from 150mm dia upto 300mm supplying and fixing c.i. cover 300x300 mm without frame for gully trap (standard pattern) the weight of cover to be not less than 4.5 kg providing and fixing square-mouth s.w. gully trap class sp-1 complete with c.i. grating brick masonry chamber with water tight c.i. cover with frame of 300 x300 mm size (inside) the
Sector: Police and Internal Security