"John A. Weeks III" wrote:
If the municipal water supply is ok, why use a water filter in the
fridge? It's just guesswork to figure out how often to change it -
would water from a non-working filter be worse than unfiltered water?


Yes, a non-working filter can be dangerous.

Is there any way to tell whether it's actually working? Some manuals
recommend changing every 6 months, others once a year, depending on
use and water quality. That's why I thought removing the filter might
actually be safer in some circumstances...



--

For a list of all the ways technology has failed to improve the quality of life,
please press three.

....Alice Kahn