Details: material and labour for cleaning of semi underground rcc sumps of 1 nos of 60,000 gallon capacity, cleaning of tank to be done two times( first cleaning to be done within two month of accepting of contract and minimum gap of three month between second cleaning) through 7 stages of cleaning and sterilization consisting of three stages of bacteriological screening done by terbac-g5, terbac-g65 and ultra violet ray process complete all as specified and as directed by engr-in-charge. note : (a) two time cleaning shall be done.(b) first stage is to drain out the water by using exit valve or our own high capacity dewatering system(c) second stage is cleaning all the algae formation inside the tank by using terbac g10 a laboratory tested branded chemical of the company and scrubbing the walls of the tanks.(d) third stage is fresh water cleaning by high speed jet pump with pressure 5 psi.(e) fourth stage and first bacteria screening is sterilization by using terbac-g5 a laboratory certified
Sector: Defense