Can those little filters effectively do much filtering to 300 gallons? What do they filter out? Wonder if they've ever been tested.
I think so. Wife likes the water taste better and I think the carbon filtered water tastes better in my coffee, so we are generally happy. 300 gallon reference is approximate per the company that sold the filter.
You are correct. I actually test the filtered water with my aquarium test kit.
They are carbon filters (activated carbon) and remove and or reduce many pollutants. If like I posted above it is NSF rated it lists some of the chemicals/pesticides that it will reduce. Activated carbon is also used by some public water supplies to remove pollutants.
Best of all your taste buds are correct as far as public water supplies is they remove (or at least the ones I post) 100% of the chlorine, confirmed by my own test strips. Pretty much any of these filters will reduce pollutants and 100% of chlorine. Buy some aquarium test kit strips if you are into this kind of thing and it will confirm what I am typing.
Water from my faucet even though our public water supply is reverse osmosis, 2nd largest reverse osmosis system in the USA they still add chlorine to the supply which is 100% prudent to do. If I test my tap water, it clearly shows up as 0.8PPM of chlorine on a good day like today other times higher and you can smell it faintly, when I test my refrigerator water like right now posting this message it is 0 - PPM of chlorine.
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However lets take this a step further can get much into it now but it bothers me that when these filters sit in the refrigerator for a long periods of time. Like right now I am one week away from changing it at the 4 month mark. There is some kind of activity taking place is ALL THESE FILTERS when coming into contact with chlorine... Im surprised there is no attention being paid to it and it's NOT just refrigerator filters, it's any filter using carbon and other materials.
SO I just tested my tap water, and has the indicated 0.8 of chlorine and
zero nitrates and nitrites.
Well, over time the process I talk about above starts an activity in the carbon filter and Nitrates and worse, nitrites start forming, yet so little written about it. Right now, the filtered refrigerator water has 0.0 of chlorine which makes the water taste good plus whatever other odors and stuff that gets filtered out. HOWEVER the filter now getting older is converting chlorine (or whatever) into nitrates and worse, nitrites. SO my tap water has 0.0 nitrites but my filtered water has 1.0 PPM of nitrite and 10 to 25 PPM of nitrates. EPA limit is 1.0 PPM of nitrite and 10 PPM of nitrate. So these filters are adding in dangerous NITRITE after a period of time as they age.
I mean. I cant be the only one trying to expose this? This is scary stuff and I can testify the post below is also accurate and for them it's under the sink carbon filter.
I found one post on Reddit from 4 years ago on the subject as below;
EPA link-
https://archive.cdc.gov/www_atsdr_cdc_gov/csem/nitrate-nitrite/standards.html