What tests should be regularly performed on boiler water?

Regular testing of boiler water is essential to ensure the efficient operation and longevity of the boiler system. The specific tests that include pH, total dissolved solids, hardness, and alkalinity are crucial because they directly impact water quality and, consequently, the boiler’s performance.

Monitoring pH is vital since it helps prevent corrosion in boiler components. A balanced pH level indicates that the water is neither too acidic nor too alkaline, both of which can lead to damage. Total dissolved solids refer to the amount of dissolved material in the water. High levels can cause scaling and operational inefficiencies. Hardness measures the concentration of calcium and magnesium ions in the water, which, if excessive, can lead to scale formation on heat exchange surfaces, thereby hindering efficiency. Alkalinity is related to the water's capability to neutralize acids, and maintaining proper alkalinity levels helps to prevent corrosion and ensure good water quality.

These tests create a comprehensive profile of the boiler water chemistry, enabling operators to take necessary actions, such as water treatment or adjustments, to maintain optimal boiler performance and prevent costly repairs or failures.

The other options, while they may have relevance in different contexts, do not focus directly on the essential chemical properties of the water, which are critical to