Every square inch of surface within a water distribution network presents an opportunity for microorganisms to colonize and become a detriment to the health and well-being of laboratory animals. Some pathogenic organisms like pseudomonas aeruginosa secrete an extracellular substance known as biofilm that enables them to bond to surfaces and each other, allowing them to reproduce and thrive. The joint between two lengths of pipe is an ideal location to host biofilm. These dead spaces or ‘dead legs’ provide additional surface area for adhesion and growth, and form crevices where microorganisms may be sheltered from sanitizing agents.
To eliminate the gap between pipe lengths, a rubber seal may be used to bridge the pipe - removing the dead spaces in between. Edstrom Clean Joint™ piping systems apply this principle to inhibit biofilm growth. Clean joint connections utilize an L-shaped rubber seal between pipes to provide a smooth internal profile. This profile at the connection point improves the effectiveness of sanitizing due to the absence of voids where bacteria and biofilm can grow. The Edstrom Automated Watering Systems from Avidity Science feature Clean Joint connections, a technique equivalent to the use of sanitary fittings in pharmaceutical manufacturing and hygienic food production.
As animal models become more sophisticated and specialized, the need to control drinking water quality increases. Clean Joint technology has been designed especially for use in animal drinking water systems. It is made from electropolished and passivated 316 stainless steel, making it tolerant of treatment with acidified or chlorinated water.
Biofilm: The Key to Understanding and Controlling Bacterial Growth
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