| If air is continuously allowed to enter the device shown in the illustration while operating in the processing mode __________. |
| A) the air will accumulate in the top of the unit and will be manually vented off using valve "2" |
| B) the accumulation of air in the top of the unit will be sensed as oil by item "6" and initiates the oil discharge mode |
| C) the air will present no problem to the operation of the unit, it is entrained with the treated water and is pumped overboard |
| D) the unit will prevent this as the associated pump is normally controlled with a level control device |