1.Before cleaning the cargo hold, the hatch cover, hatch coaming, and main deck should be cleaned first to avoid bringing impurities into the hold.

2.Before cleaning the cargo hold, the sewage well cover should be securely closed to prevent impurities from entering the sewage well.

3.The cargo hold should be cleaned from top to bottom, starting from the hatch and moving down to the hold bottom.

4.Between the cargo hold ribs, impurities should be removed first, followed by rinsing with water.

5.When cleaning the sewage well, impurities should be removed first, followed by rinsing with water. The engine room should be notified to start draining, and the suction force of the sewage well should be observed. If drainage is not smooth, repairs should be carried out promptly. After the sewage is drained, it should be wiped clean with a mop or absorbent sponge, and the sewage well suction head should be observed for any water leakage. If there is leakage, the engine room should be notified for timely repairs.