How To Clean A Water Cooler Bottle. Unplug the water cooler and remove the old, empty bottle. Add the water and vinegar to the bucket.
Pour the vinegar into the reservoir of the water cooler. Understanding your water cooler though some water coolers are linked directly to the plumbing in a house or office, the vast majority are bottled water dispensers using a 5 gallon water bottle. To clean a water dispenser, unplug the cooler from the wall and remove the bottle.
Put the new water bottle on top of the cooler.
Unplug the water cooler and remove the old, empty bottle. Then spray the bottle with either hydrogen peroxide or vinegar. Also, remove the faucets from the front of the water cooler. It may be necessary to add something to the water to produce some friction on the surface of the bottle.