No amount of telling, whining B(*#%ing or complaining can get my co-workers to stop emptying the bottle and leaving it empty. We have already had to replace one cooler because they did that, and the minimal amount of water left in freezes and cracks the unit or something. I actually had to COVER the spigots the other day when we were low on water. I had gone to the store to get some to put in the refrigerator until the next day's delivery, and they were still going to use up the last in the dispenser instead of going to the fridge until I covered them. Ijuts!