Power generation requires a substantial investment in capital equipment and great importance is attached to proper maintenance of the powerhouse facilities. Unfortunately, high purity water is corrosive to boiler and condensate systems. In addition, leaks in the system can add unwanted chemicals that increase corrosion potential. For example, in the condenser, raw cooling water can leak into the pure water. Also, air leaks at the seals of the turbines and pumps allow oxygen to dissolve in the boiler feed water, making it more aggressive. To counter these effects, trace level corrosion inhibitors and oxygen scavengers are typically added to the boiler feed water to reduce these risks.