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My testing shows no difference before and after filtration
on November 24, 2016
I have been using these for a while completely on faith in a well know brand name. It is in an under sink model professionally installed and set up, with the routing checked and it is spliced into the system correctly. I did a very basic test of the water before and after installing the last filter I purchased.
Using an electronic probe the water without filtration from the unfiltered tap averaged 302 ppm dissolved solids. I then installed the filter according to instructions, letting it run until the blinking led changed to green. The water tested from the "filtered only tap” also averaged 302 ppm. I know this is non-specific but what are the odds the ppm is exactly the same with and without the filter in the circuit? Am I expecting too much from this filter?
As a control we tested the 3 filter/stage professional RO water filter system we use to make clean water for our aquariums and it consistantly
showed 000 ppm with the same electronic tester. Zero Water pitcher with a fairly new filter registered between 000 and 010 ppm, very close to RO, and the moderately used Brita filter pitcher tested at 225 ppm. All better than the new Moen filter.
It seems to me the water should show some difference between filtered and unfiltered with this testing method despite its lack of specificity.
An anecdotal finding, when offered two bowls of water, our three cats always prefer to drink the water from the Zero Water pitcher to the Moen filtered water. Both were kept at room temp to take temp out of the equation.
What should the water produced from your filter register on that scale? If I am wrong please tell me how better to test the filtered water so that I know that it is working as designed.
I would like a free replacement filter to test and If am convinced it is working I will keep the Moen system.