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Q6. With reference to the treatment of domestic water for potable use.
(a) describe the principle of operation of a steriliser that uses silver irons; (4)
(b) State the advantages of silver iron sterilisation 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)
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