How far apart do the ends of six underground tanks need to be if installed in two rows with a 3 ft distance between the sides?

When installing underground tanks in two rows, it's essential to maintain safety and accessibility standards. The correct answer states that the ends of six tanks need to be 10 feet apart. This consideration ensures that there is adequate spacing for any potential maintenance activities or emergencies that may arise.

To understand why 10 feet is the appropriate spacing, it's important to think about the additional 3 feet required between the sides of the tanks, which affects the overall distance between the ends of the tanks in each row. If two tanks are side by side, the distance from the end of one tank to the end of another across the rows needs to take both the tank length and the spacing into account. This regulation helps mitigate risks, such as that from fire hazards, ensuring that there is sufficient separation for safety.

Having this knowledge about the required clearances can help in planning tank installations that comply with local safety codes and standards, minimizing potential risks associated with fuel storage.