bids are invited for boq 1 - m&l for cleaning of pvc service water tank situatedt roof of building at any height remove the inlet and out let coupling connections and cleaning and removing all dirty, muddy water etc from the service tank by using wire mesh brushes, brooms including scraping the all scale formation neatly cleaning inside surfaces by applying bleaching powder and finally clean with fresh water including cleaning of bottom surface, platform, rcc / pcc slab and refix the tank and inlet, outlet connections upto 500ltrs, 750ltrs and 1000ltrs capacity complete.details of tank like date of cleaning capacity of tanks and due date for cleaning etc shall be written on the out side of the tank with synthetic enamel paint in white colour in black tank and black colour in white tank complete all as specified and directed. , boq2 - supply only ball brass valve high pressure with polythene float and fly nut complete to bore of pipe 20mm complete all as specified and directed. , boq3 - m&l for cutting of vegetation plant from roof, terrace, chajjas etc digging out the roofs and making good the surface in pcc 1:2:4 type b1 ( using 20mm graded stone aggregate ) with surfaces finished to match including scaffolding etc complete, all as specified and directed. , boq4 - supply only of pvc water tank cover with threaded lid of approved make fixed to existing tanks all as specified and directed.note:- ( i ) funds are available to meet the cost of repairs. ( ii ) chargeable code head 51 / 761 / 30 ( iii ) old unserviceable items shall be contractor’s property, for which suitable credit it to be offered to the department total quantity : 1