Water Supply, Irrigation & Sanitation Tenders

M&L for seven stage cleaning and sterilization of inside the RCC/Underground/semi underground/OHT/ Sedimentation / clear water sumps of following capacity through bacteriological treatment by using Calcium hyphoclhorite or equivalants cleaning agents. :- (a). First Stage is to drain out the water by using exit valve or our own high capacity dewatering system or by own arrangement. (b). Second stage is cleaning all the algae formation and removing the accumulated silt from bottom bed and side walls by brushing with Steel wire/nylon brush or scrubbing the walls of the tanks or removing other sticky or foreign materials from adhering surfaces and washing inside surfaces with suitable chemical. (c). Third stage is fresh water cleaning by high speed jet pump with a pressure of 5 psi. (d). Fourth stage and first bacteria screening and degermification by using Laboratory certified branded halogen compound. (e). Fifth stage is cleaning the floor of water tank by heavy duty industrial vacuum cleaner. (f) . Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray Ejector covering 360 degree within the tank and kills all suspended bacteria. (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified, oxydizing agent. Note :- (i)Contractor shall be fully responsible for all security and saftey measures. (ii) Contractor shall ensure that during cleaning of tanks etc water supply system is not intrupted. (iii) Chemical used and T&P rate deemed to be included in qupted rate. (iv) Paintings of information board. (v) Test certificates of all chemicals used and a bacteriological test certificate of the cleaned tank shall be submitted by the contractor after completion of work.