What should be done if the pipe cannot fit through the sleeve due to size issues?

When a pipe cannot fit through the sleeve due to size issues, reassessing the sleeve size and adjusting it accordingly is the most appropriate action. This approach ensures that the problem is addressed systematically. Instead of forcing the pipe through, which could damage both the pipe and the sleeve or lead to leaks and structural issues, examining the measurements helps ensure compatibility and safety.

Changing the sleeve to a larger size without consulting is potentially risky because it might not comply with design specifications or codes, possibly leading to further complications. Reporting the issue and halting all work could be excessive unless it poses immediate safety concerns; it's often more efficient to solve the sizing issue without completely stopping all progress. Thus, reassessing the situation allows for a practical and code-compliant solution, enabling the project to continue efficiently.