Is adding softened water for toilets in softener installations based on necessity?

In the context of water softening systems, choosing to add softened water for toilets relies more on convenience than absolute necessity. While using softened water can prevent mineral buildup and improve the efficiency of plumbing systems, toilets function adequately with hard water. The primary purpose of a water softener is to reduce hardness minerals in water for appliances, cooking, and drinking, where the effects of hard water are more pronounced.

Using softened water in toilets may help with cleanliness by preventing scale buildup, but it is not essential for the toilet's basic operation. Many households manage quite well with hard water in their toilets without any significant issues. As such, the decision to use softened water in this context is generally made for convenience rather than a critical necessity, as it does not impact the core functionality of the toilet itself.