Purified water loop commissioned and qualified

Water that stands still grows things. The loop keeps water in constant circulation at a velocity sufficient to discourage biofilm, with no dead legs longer than the accepted rule of thumb and sanitisation on a defined cycle. Conductivity and total organic carbon are monitored continuously, with bioburden sampled on a schedule that covers every user point over the course of the month.

“A water system is only qualified once it has seen a full monsoon.”

Qualification followed the three-phase approach used for water systems: an intensive initial phase sampling every point every day, a second phase confirming the sanitisation regime, and a year-long phase capturing seasonal variation in the incoming feed water — which in Gujarat is considerable.

The loop supplies granulation, cleaning and the laboratory, and its performance is reviewed in the annual product quality review for every product it touches.