Prevent galvanic attack by mapping dissimilar-metal interfaces, selecting compatible joint materials, controlling area ratio, isolating only where mechanically and electrically acceptable, and eliminating wet hidden crevices.

Specify PMI by alloy, component, examination percentage, test method and acceptance criteria. Control traceability through cutting, fabrication and field repair, and investigate every mismatch before tower closure.

Control dividing-wall leakage by defining allowable bypass, sealing every perimeter and penetration, checking differential-pressure deflection, accommodating thermal movement and verifying the completed boundary with a function-appropriate test.

Define project seismic demand, inventory all operating mass, trace lateral reactions through packing and internals to the shell, and coordinate seismic restraint with thermal expansion and installation clearance.

Treat hydrotesting as a separate internal load case. Map liquid boundaries, calculate wet weight and buoyancy, verify equalization and drainage, and inspect critical geometry before returning the tower to service.