Qdos metering pumps solve turbidity testing dilemma for Welsh Water

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Courtesy of Watson-Marlow Fluid Technology Group

Until recently, turbidity testing at the Pontsticill Water Treatment Works in the Brecon Beacons National Park relied on the use of bellows pump technology. However, the inherent introduction of air in the samples was undesirable and led to false readings. Now though, relief has arrived in the shape Watson-Marlow’s new Qdos 30 metering pumps, which not only provide excellent suction lift, but do so without air locks.

 

“This is a clean water site and the quality of sample is very important,” states Marek Cegielski, a process scientist and manager at Dŵr Cymru Welsh Water. “In the past we’ve tried other types of turbidity monitoring devices, such as dip probes, but without much success. We’ve even used bubble traps in conjunction with our bellows pumps, but we still fell short of 100% reliability. Of course, eliminating the need for bubble traps was one of the attractions of replacing one of our bellows pumps with the new Qdos 30 from Watson-Marlow.”

 

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