PVC/HDPE/Plastic Tanks. (1) Empty the water storage tank, thoroughly clean all the sides by using coir brush if necessary , by soap water, remove all encrustations / moss formations and wash the tank with clean water. Again clean the tank with water and allow ti to dry. (2) Before re-commissioning the tank, the same shall be sterilized as in case of other tanks. 7.9.2.4
