use 1) Sodium ...

Published March 23, 2016 03:59 by Subrata Halder, Executive Engineer (Agri-Irrigation) at Water Resources Investigation & Development Department, Govt. of West Bengal, INDIA

use 1) Sodium Hexametaphosphate powder 2) HCL acid and 3) Bleaching powder altogether for a short duration for cleaning and disinfection of water tank.