O yẹ ki o ṣayẹwo nigbagbogbo plug ọfun ati ogbontarigi kekere ninu plug ọfun. Ma ṣe gbe awọn aṣọ ṣiṣu ati awọn ohun elo miiran sori plug ọrun lati mu ilọsiwaju iṣẹ lilẹ ṣiṣẹ ati rii daju ṣiṣe ti ojò nitrogen olomi.
Awọn ibeere ohun elo fun awọn tanki ipamọ