Brita pitcher filters do not technically filter water; rather they improve the taste of tap water by reducing metals and additional chemicals. Brita filters do not remove microbial elements but are effective in making tap water much healthier and palatable. The company lists clear guidelines on filter replacement.
Filter Replacement Frequency
The Brita company (Brita.com) states that, for best results, a Brita pitcher filter should be replaced after filtering around 40 gallons (151 liters) of water. The company states that a typical family should replace the Brita pitcher filter about every two months.
Filter Replacement Instructions
Wash your hands before handling a new filter. Remove the filter from its bag. Soak the filter in water for 15 minutes. Hand-wash the pitcher/filler with a non-abrasive cleaner. Rinse well. Rinse the new filter under running water. Insert the new filter. Filter pitchers of fresh water and discard before using the new filter. Brita notes that carbon dust may appear in the first two pitchers of water.
Brita notes that its pitcher filter products reduce chlorine levels and heavy metals such as copper, cadmium and mercury. Municipal water districts use chlorine to control microbes. It protects the public from bacteria but gives tap water an odor and bad flavor. Copper exists in drinking water due to common pipe corrosion. Cadmium enters water systems through galvanized pipe corrosion; both cadmium and mercury enter drinking water sources by refinery discharge and runoff. All three metals may cause a variety of health ailments.
Brita stresses to not fill the water pitcher with hot water exceeding 85 degrees Fahrenheit. In addition, the company instructs users to not filter more than 2 gallons of water (7.5 liters) per day. According to the company, filtering more water than 2 gallons per day reduces the filter's efficacy. Also, Brita recommends not allowing the filter itself (inside the pitcher) to dry out. If the filter unit dries out, the company recommends soaking it for at least 15 minutes. Replace room temperature (non-refrigerated) water after two days. Store the pitcher in a refrigerator for best results.