Which factor is crucial for ensuring good water quality in a boiler?

The correct factor for ensuring good water quality in a boiler is the correct pH level. Maintaining the appropriate pH level is crucial because it helps prevent corrosion and scaling within the boiler system. If the water's pH level is too low (acidic) or too high (alkaline), it can lead to the degradation of materials in the boiler, reducing its efficiency and lifespan. Proper pH balance supports effective chemical reactions within the boiler, promoting better heat transfer and overall performance.

Water with the correct pH also ensures that any added treatment chemicals can work effectively to provide protective measures against harmful contaminants. In systems where the water quality is monitored, maintaining the right pH helps to minimize maintenance issues and extend the operational life of the equipment.