Which of the following statements describes what will occur if the annular spaces, indicated by the letter "K" of the device shown in the illustration, became restricted? Illustration MO-0112

Correct Answer: Option D — The bowl will fail to close when starting and the unit will not shoot when operating.

Annular control passages supply operating water to actuate the sliding bowl mechanism. Restrictions in these vital ports prevent the necessary hydraulic pressure buildup required to force the bowl closed during starting sequences and prevent timely opening during sludge discharge operations.