Over time, exposure to impurities can impact the dispenser's hygiene level and subsequently, the taste of the water. Regular Cleaning helps maintain a clean and sanitary environment for storing and dispensing water. Manufacturers & Distributors recommend dispensers be cleaned every three months. Consistent cleaning and maintenance can help your water dispenser to perform at its best. in the Water Cooler Cleaning Kit: Scour Pad Biodegradable Food 3% Hydrogen Peroxide Nitrile Gloves User Manual Our single-use water cooler cleaning kit can help keep your water cooler at it's best and your water tasting fresh. Just like other appliances, water dispensers/coolers require regular cleaning and maintenance. Over time, exposure to dirt, dust, pollution, germs, and sunlight can affect the taste of water. We recommend cleaning and sanitizing your water dispenser four times a year. Intended for top-loading dispensers with non-electronic dispense (manual or -fed) spigots.