🔍 Key Concepts

• Fuel oil settling tank function and location in the system • Most reliable way to confirm water presence and level in a tank • Difference between checking the indication and taking system action

💭 Think About

• Ask yourself: before you change pumps or suction, how do you positively verify and locate the water in the tank? • Which option represents a direct physical check of the tank contents versus relying on remote instruments? • Which action would give you the most accurate picture of the situation with the least chance of making things worse?

✅ Before You Answer

• Identify which choices involve remote readings versus manual verification at the tank • Consider what must be done before shifting pumps or suctions to avoid spreading contaminated fuel • Verify which action would help you determine both presence and interface level between oil and water in the tank