With reference to the treatment of domestic water for potable use: (a) describe the principle of operation of a sterilizer that uses silver ions; (4) (b) state the advantages of silver ion sterilization over other methods; (2) (c) state the inspections and maintenance that should be carried out on EACH of the following: (i) fresh water tanks; (2) (ii) calorifiers. (2)
Cooling system & FWG
UKM Tuticorin 
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