BHC Recommends Tank Agitation Using Eductors in Place of Air Sparging
Under-surface turbulation using eductors is an alternate form of tank agitation and the most effective way to ensure a clean part while reducing processing time and extending bath life. Eductors create mechanical action through a combination of direct impingement and fluid movement of the cleaner solution on the part surface, which improves soil removal and the overall cleaning process. As a best practice, avoid introduction of air, or agitation at the air-liquid interface, which would create all the problems associated with air sparging.
Air sparging is accomplished by pumping air through the cleaning tank, often through a pipe with holes drilled to release air bubbles into the tank.
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