| 摘要 |
The cleaning compound for a water dispenser includes four ingredients: N'alkyl dimethyl Benzyl Ammonium Chloride, within the range of 0.08 to 0.1 % by weight; b) citric acid, of about 20 % by weight of the total solution; c) propyl ene glycol (food grade), about 4 % by weight; and d) sodium hydroxide (food grade), in suff icient quantity to neutralize the solution to a pH range preferably between 2.6 and 4.5 . During the initial clean-up steps, and contrarily to prior art cleaning methods, the cl eaning method does not require complete purge of the inner water reservoir from drinking water , due to the tacky nature of the cleaning compound which can still be effective in dilute d state and in a submerged environment.
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