Details: cleaning of underground sump, over head r.c.c. tank (independent staging) including disposal of slit and , all as per direction of engineer-in-charge. the cleaning shall consist following operations:-(i) tank shall be emptied of water bypumping & bottom shall be cleaned of silt and other deposits.(ii) entire surface area of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with water.(iii) chlorination of rcc internalsurface by liquid chlorine.(iv) the treated surface shall be driedusing air jetting and all loose particles shall be removal from the surface.(v) finally the surface shall be treatedwith ultraviolet radiation etc. as per direction of engineer-in-charge and as per scope of work.
Sector: Science University