What terminates the sludge discharge cycle of the device shown in the illustration? Illustration MO-0112

Correct Answer: Option C — The solenoid valve closes, allows the water in the opening chamber to bleed off through "S", and the sliding piston moves upward due to the force developed in area "J".

De-energizing the solenoid valve stops incoming water, allowing the opening chamber water to bleed through nozzle "S" so closing force in area "J" pushes the piston up.