What should be minimized to ensure a proper repair on cast-iron pipe?

To ensure a proper repair on a cast-iron pipe, it is essential to minimize undermining. Undermining refers to the removal of support or soil beneath the pipe, which can cause the pipe to settle or shift. This shift could lead to increased stress on the pipe and create additional leaks or failures. When repairing cast-iron pipes, maintaining their support and stability is critical to ensure a long-lasting and effective repair.

Minimizing undermining helps preserve the integrity of the surrounding structure and ensures that the pipe maintains its proper alignment and support throughout the repair process. Achieving this stability can involve careful excavation techniques and monitoring for any changes in the soil conditions around the pipe. Such precautions help to avoid complications that could jeopardize the quality of the repair.