After a tank is upgraded with cathodic protection, when should the first tightness test occur?

The first tightness test following the installation of upgraded cathodic protection should occur six months after installation. This timing is essential because it allows sufficient time for the cathodic protection system to stabilize and effectively protect the tank from corrosion. It also provides an opportunity to assess whether the upgrade has adequately enhanced the integrity of the tank and its components. Conducting the test too soon may not yield accurate results regarding the effectiveness of the cathodic protection since the system may still be adjusting.

Maintaining a clear timeline for this testing is critical for ensuring compliance with regulations and preventing potential leaks, which can have serious environmental and financial implications. It demonstrates diligence in monitoring the tank’s condition post-upgrade and helps in identifying any issues that could be addressed before they become significant problems.