What is the correct approach when installing connections to an underground tank?

The correct approach for installing connections to an underground tank is top access. This method is preferred because it allows for easier access for maintenance and inspections, contributing to better safety and efficiency. Top connections facilitate proper venting and routing of fuel lines, which is crucial in preventing leaks and ensuring that the system functions optimally.

Additionally, top access reduces the risk of debris entering the tank during installation, which can happen with side or bottom access, potentially leading to contamination of the fuel. By utilizing top access, technicians can also more effectively manage any vapor release during initial filling or maintenance of the tank system.

In summary, top access is the most suitable method for underground tank connections due to its advantages in safety, maintenance ease, and contamination prevention.