What is the purpose of the soap test after installing a repair clamp?

The soap test after installing a repair clamp is primarily used to check for a proper seal. This procedure involves applying a soap solution to the area around the clamp. If there are any leaks present, the soap solution will form bubbles or foam at the site of the leak, indicating that the seal is not secure. This step is critical to ensuring that the integrity of the distribution pipe is maintained after repairs, preventing leaks that could lead to water loss, damage, or contamination.

The other options do not relate directly to the purpose of the soap test. Verifying the torque applied focuses on ensuring that the clamp is tightened sufficiently to create a seal, but is not determined by the soap test itself. Cleaning the surface is a preparatory step prior to the installation and is not related to the seal verification process. Inspecting for visual defects might help identify issues with the clamp or pipe but does not serve the specific purpose of confirming a secure seal once the clamp is installed. Thus, the soap test is an essential step for confirming that the repair has been successful and is functioning as intended.