Clean it regularly. Just because it’s water doesn’t mean it won’t get dirty and grow bacteria, mold, algae, etc.
This, for sure. I really like the way water from a Brita tastes--straight, in coffee, tea, juice concentrates, water carbonated with a Soda Stream, ice cubes, whatever. I am suspicious that there is something in that Brita cartridge that adds flavor as well as filtering the water. We have a built in cartridge filter on a separate kitchen faucet--I have no idea what brand--but it never tasted as good as the Brita filtered water to me. Where I live the "city" water straight from the tap seems to be fairly chlorinated. I am not happy if Brita is taking out the fluoride.