To keep the unit safe and running properly, it is important to clean and disinfect the unit every month or so, or each time you change water bottles. Vinegar is a natural disinfectant that contains no harsh chemicals and will keep your water dispenser bacteria-free.
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Remove the water cooler from the water dispenser, and wipe with both the lip of the bottle and the bottle holder opening on the dispenser unit with a rag saturated in white vinegar.
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Wipe the same vinegar-soaked cloth over the drip tray and dispenser taps and faucet handles.
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Pour a combination of 4 cups hot water and 4 cups white vinegar into the dispenser reservoir.
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Wait 20 minutes, and run the water out of the reservoir through the taps.
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Fill the reservoir with plain hot water this time, and run through the taps to flush out any leftover vinegar residue.