Manufacturers provide clear directions on how often you should change the filter of your pitcher. The standard instruction for changing filters is once every couple of months. However, if your water contains more contaminants, you will have to change your filters more often than suggested. It is important to note that water that has lots of impurities will wear out your filter more quickly.
You will also know that it is already time to change your pitcher’s filter if you notice frequent clogging. Aside from this, a noticeable change in the taste of your water coming from the pitcher is a strong indication that you need to change its filters. A change in the filtration speed of the pitcher could also mean a high time to change filters.