The vessel/column has historically suffered from breakdown of the internal lining.
Column Repairs
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The vessel/column has historically suffered from breakdown of the internal lining.
Initially the 24” Caisson had suffered a through wall leaking defect at the top location just under the bottom deck
A flange joint connection on a 6” steam line had failed due to possible gasket or flange face issues.
A cracked leaking weld had appeared on a 2” drain line and valve assembly due to vibration in the line.
The 1.5” offtake had developed a number of pin hole leaks from the weld
This tank was operating at ambient temperature with atmospheric pressure. The nozzle had a small weep on the weld which required sealing before the engineered composite was applied.