On Tuesday, September 23, 2014 5:02:26 PM UTC-10, Ed Pawlowski wrote:
> On 9/23/2014 10:08 PM, dsi1 wrote:
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> > If your refrigerator is like mine, you can reset the light reminding
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> > your to replace the filter. This makes the display ever so much more
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> > attractive. I've never replaced my filter. I'm waiting for it to
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> > completely clog up or for the ice to come out black.
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> Wonder what bacteria may be living in the filter. I'd not wait that long.

That's a good question. If there are any, they don't appear to be harmful. My assumption is that you'd need to flush out the entire system to clean it out. I don't know anybody that does this.

I cleaned out my water cooler after years of use and was surprised to find that the hot water tank had quite a viable colony of black algae. Life is quite a tenacious cookie.