How often should I change a Brita filter to ensure optimal water quality and taste? Is there a specific timeframe that experts recommend, or does it depend on my usage and water consumption habits? For instance, if I’m using my Brita pitcher frequently—say, multiple times a day—would the necessity to replace the filter arise sooner than if I only used it occasionally? Are there particular signs I should be aware of that indicate a filter is no longer effective, such as changes in water clarity or an unpleasant taste? Furthermore, might different types of contaminants present in my tap water influence the lifespan of the filter? Should I perhaps consider testing my water before making a decision on the frequency of replacement? Ultimately, what are the best practices for maintenance in order to safeguard my health and ensure that I am enjoying the best possible drinking water? Could you provide clarity on this topic?