"Advantages of Recirculating Faucets To Control POU Microbial Contamination" by Water Works CEO, John Wammes

Ultrapure Water Journal, Volume 31 Number 6, (November/December 2014)
Advantages of Recirculating Faucets To Control POU Microbial Contamination, by John Wammes, Tom Sixsmith, Paul Galvin, and Marty Burkhart


Laboratory faucets, sometimes referred to as gooseneck faucets, abound in environments where a small amount of Purified Water (PW) or deionized (DI) water is needed for biological or laboratory tests, reagent or standards preparation, and glassware or instrument cleanup, just to name a few processes.

There are a variety of these faucets available from a number of suppliers in today’s market. The majority of these laboratory faucets are usually chosen for installation based on their inexpensive cost or aesthetically conforming design with little or no concern given to overall quality of water delivered through those direct flow fixtures, which allows for biofilm buildup in the static flow stream within the faucet and upstream piping during no-flow conditions.