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Question DetailsAsked on 4/29/2017

Does the FilterSmart salt free system remove the sulfur (rotten egg) smell?

Looking to get rid of our salt-using softener system and aerator tank - this system seems great, but I'm not finding answers regarding the sulfur smell.

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1 Answer


Your aeration tank is what is removing the smell (maybe or more likely not totally effectively) now - if you have a lot of hydrogen sulfide or magnesium sulfate or such in the system, you will still need that sort of treatment. Small amounts of sulfur taste/odor can be effectively removed by a carbon filter such as FilterSmart configurations can have, but large amounts will still allow the odor/taste to come through, plus cause the carbon filter (which is not cheap) to become saturated and need filter replacement more frequently than wouldotherwise be needed - sometimes as often as monthly or even more frequently instead of the more typical 3-12 month replacement cycle.

Generally, if the sulfur smell is from raw sulfur (in or above the formations the well pulls water from), from sulfur from agricultural operations, or from sulfide-bearing minerals in the formation, the carbon filter and air-stripping will not remove it effectively - you will need a chemical reaction water softener like you have now, with a reaction agent which removes the problem minerals you have - might be an activated ion media, might be an activated resin (many water softener system take either kind). If it is from hydrogen or other sulfide gas dissolved in the water, then carbon filtration will work relatively well, depending on the gas concentration in the water.

My recommendation - if you want to try that type system leave the existing system in place, put the new system downstream (on the house side) of it in a place you would be happy with it permanently being (probably near where the treated water line heads off into the house distribution lines) and try it for awhile with the existing system on manual bypass, to see how it works. That way you can readily turn the existing system back on if the new system does not do the job well, and if it does then just cut the existing system out and connect the raw water pipe to the new system - probably a $100-200 job or maybe even DIY. Personally, I would not truust a filter-only system to solve your problem.

Here are a few Angies List articles and previous questions with answers on the issue FYI:

Answered 3 years ago by LCD

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