I installed a KDF GAC(4:6 by weight) filter (counter-top) to reduce possible heavy metals and chlorine in the water. (our water tastes generally good, except slightly chlorine)

However, after running the water through the filter we get a very strong rotten egg smell/taste. (assuming H2S)

Note: The water states/smells fine before filtration (or on any other tap in the house) except for slightly chlorine.

After some research; The filter should remove H2S not introduce it.

I can't find any reason other than it might be due to bacteria growth or the filter is saturated. But since this is a new filter I got yesterday... I'm completely stumped.

Why would a new KDF/GAC filter cause a rotten egg smell/taste?

PS. I've also let it run for 5 minutes at +-5.56L/min (+- 28L) without any improvement.

  • Did you test the water for heavy metal? What is your water source? Why did you choose to install this filter? If chlorine is your only complaint install a simple charcoal filter instead. If your looking for the purest drinking water install reverse osmosis. The only reason you need that extremely high maintenance KDF/GAC filter is if you have contaminated well water, which is doubtful since you didn't install whole house KDF/GAG. – Tyson Feb 23 '18 at 11:23
  • @Tyson KDF/GAG you replace less frequent than with a charcoal filter as you suggested. I'm not looking for an alternative. I want to know why it's happening and if something can be done about it. This is exactly the filter I want. I'll be installing a pure KDF whole house, once this problem has been clarified/solved. I don't need a RO system. – Aldracor Feb 23 '18 at 11:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.