I have noticeably smelly cold water and this really helps. Until recently I was unable to determine the effective filter life for odor control. I noticed that the last time I changed the filter was exactly 2 months ago and the smell has just returned. This is with two users in a house with well water. The above statements take place without a drinking water supply via a pur activated carbon filter installed on the water tap. This makes the water perfectly drinkable. i drink it a lot For water going through an electric water heater that gives off H2S and sulfur odor, I installed a Corro-Protec titanium anode ($129 parts + installation). I got this from amazon. This was a definite improvement. I also have a water softener which didn't do much about odor but did noticeably improve hardness. With all of this, I now have acceptable well water.
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