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Thread: RO smell and taste problem

  1. #1
    TomD is offline Junior Member
    Join Date
    May 2010
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    17

    Default RO smell and taste problem

    I have a Haque H3500. I just had my RO serviced. Now the water has a bit of a foul smell and doesn't taste right. The tech did the following. He ran a packet of disinfectant through the system. Then he replaced the PCF (prolonged contact) filter with one he repacked. He replaced the prefilter. He replaced the finishing filter with a carbon block filter instead of the GAC filter that originally came with the unit. This is frustrating. The TDS rejection is an excellent 97%. I am just venting. I guess I need to get him back here to get it right. In the meantime, I am going to do a bacteria test.

    A bit more info. The smell is a slight sulfur/rotten egg smell. The best way to describe it is the water has a metallic/acidic taste.

    Any opinions are appreciated.
    Last edited by TomD; 11-12-2011 at 09:46 AM.

  2. #2
    pawaterguy is offline Senior Member
    Join Date
    Mar 2010
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    190

    Default

    have you drained the system since the service to flush out the disinfectant?

  3. #3
    TomD is offline Junior Member
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    May 2010
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    17

    Default

    I drained it about 7 times. The system is rejecting TDS about 96% so I assume that the problem is after the membrane. Which means it could be originating from the PCF, the tank or the carbon polishing filter. I contacted Haque service and he is coming back on Monday to fix it.

  4. #4
    TomD is offline Junior Member
    Join Date
    May 2010
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    17

    Default

    It turned out to be the carbon block post filter. When it was removed it had a strong rubber smell. It was replaced with a GAC filter (like it was supposed to be) and it took care of the odor and taste.

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