If you've already used the elements:
The Berkey Fluoride & Arsenic filter cartridges (PF-2) can be stored in the refrigerator for a short time (see below); however, be sure not to store them in the freezer. To do this, remove the filters from the water filter, place them in a sealable bag or container, and store them toward the front of the refrigerator to prevent them from freezing.
The Fluoride & Arsenic filter cartridges (PF-2) last only one year. “Short-term” therefore refers to the next use within that year. Keep in mind that the longer the cartridges are not in use, the more their ability to filter fluoride and arsenic may decrease. In addition, it is advisable to prime them every 2 weeks while they are in storage to keep the filtration process active.
If you've stored them in the refrigerator, we recommend priming the Berkey Fluoride & Arsenic filter elements (PF-2) again before using them. Do this for up to 1 minute in each direction.
The Berkey Fluoride & Arsenic filter cartridges (PF-2) should not be allowed to air-dry, as this can cause some bacterial growth in the filters.
If you've never used these elements before:
If the batteries are unopened and still in their original packaging, make sure not to store them in a room with a strong odor, such as a laundry room or garage. Since the elements contain carbon as one of their components, they may absorb odors from the room where they are stored. For example, if they are stored in a laundry room, they may pick up the scent of strongly scented items such as laundry detergent.