Tankerman · Operations — Line Clearing
After transfer, blowing or pigging the cargo line clear is done to:
- ACool the pump
- BTest the relief valve
- CAdd inert gas to the line
- DRecover product and prevent spillage when the hose is disconnected✓ Correct
Explanation
Clearing the transfer line returns residual product to a tank and ensures the hose/arm is empty (drained) before disconnection, preventing a spill at the manifold. It is coordinated between both PICs.
Authority: ISGOTT; 33 CFR 156
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