Which method can prevent issues with fluoride feed equipment?

Using softening or stabilizing measures for the dilution or make-up water is effective in preventing issues with fluoride feed equipment. When fluoride is added to water, the interaction with other minerals and compounds in the water can lead to scaling or corrosion, which may hinder the efficient functioning of the feed equipment.

By softening the water, the hardness minerals that can contribute to scaling are reduced, making it less likely for deposits to form within the feed lines or related equipment. Stabilizing the water ensures that it has appropriate chemical properties to interact favorably with the fluoride, thereby lowering the chances of creating conditions that could lead to equipment malfunctions or reduced fluoride feed accuracy.

Other options do not address the core issue of mitigating the chemical reactions and physical interactions that lead to equipment problems. Increasing feed rates could exacerbate issues by overwhelming the system, while using higher concentrations could lead to more severe scaling and maintenance challenges. Frequent manual cleaning, although it addresses some buildup, does not solve the root problem of water chemistry that leads to these issues in the first place.