tender for annual cleaning contract of water storage tank arc 2023-24 cleaning of water storage tank , cleaning of water tank of having capacity as given below to store water ( under ground / over head ) in the university campus with vacuum pressure pump system & also using the necessary chemical ( such as potassium per magnate ) & treatment to clean the water tank & from tank complete as directed by engineer in charge , over head pvc tanks are as followinga ) upto 200 ltr. b ) upto 500 ltr. c ) upto 1, 000 ltr. d ) upto 2, 000 ltr. e ) upto 5, 000 ltr. f ) upto 8, 000 ltr. , under ground water storage tanks are as g ) upto 10, 000 ltr. h ) upto 15, 000 ltr. i ) upto 20, 000 ltr. j ) upto 50000 ltr. k ) upto 100000 ltr. l ) upto 150000 ltr.