What is one main risk associated with improper feedwater conditioning?

Improper feedwater conditioning primarily leads to corrosion and scale formation within the boiler system. When feedwater is not adequately treated, impurities such as dissolved oxygen, carbon dioxide, and minerals can enter the boiler. These contaminants can cause chemical reactions that result in corrosion, damaging the boiler's metal surfaces and significantly reducing its operational efficiency and lifespan.

Furthermore, scale buildup occurs when minerals precipitate out of the water and adhere to the boiler tubes. This layer of scale acts as an insulator, hindering heat transfer, which can lead to overheating of the boiler tubes, increased fuel consumption, and, ultimately, catastrophic failure if not monitored and managed appropriately.

While other options point to relevant operational issues, they do not directly correlate with the primary risks of feedwater conditioning. Proper management of feedwater quality is critical to maintaining the integrity and efficiency of the entire boiler system, making corrosion and scale the primary risks associated with improper conditioning.