Thanks for the response. The steel is coated with an penetrating epoxy primer/sealer, aluminized coating, then top-coated. Coating system has failed mainly in the area of the cooling tower.
I am new to this forum, so forgive me if my question has already been answered.
Are there any corrosion effects to structural steel (A36) by biocides, algaecides, or chemicals normally used in air conditioning cooling towers?