Water coolers can be found in most modern offices. They have become so commonplace in the office that sometimes the upkeep of the water cooler is overlooked or forgotten about. This is a big mistake because what is normally a healthy supply of water can quickly become a health risk if the water cooler is not checked for potential problems. Periodically, the water cooler needs to be checked to make sure that it is working correctly and that the filtration system is also working to make sure that the water cooler does not become contaminated. Make sure that water bottles are kept sealed until they are used, to make sure that the risk of contamination is minimized.