Diamond Rock Spring Water water coolers and bottles both require periodical cleaning/sanitizing. It is important to know that bottled water can last for very long periods of time without effecting the quality and taste of the water. However you should rotate your bottles using the oldest bottles first. Also, it is very important not to store extra bottles in direct sunlight. Direct sunlight can adversely effect bottled water by promoting algae growth over a period of time.

Diamond Rock Spring Water recommends the following documentation for properly maintaining your water cooler.

Cooler Leakage
Water Not Flowing Properly
Leaky Faucets/Spickets
Sanitize your Cooler