| 摘要 |
An improved method of and system for maintaining an algicidally and bacteriacidally-effective amount of copper and silver canons in water, the method comprising subjecting the water to an electrical cell having at least one electrode comprising an alloy of metallic copper and silver to provide an effective amount of the cations in the water by electrolytic dissolution, the improvement comprising the electrode further comprising zinc. The invention provides a method of treating water without causing the deposition of copper with attendant discolouration on the walls of a swimming pool, spa and the like.
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