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I have a five-year old Amtrol water system tank, model #CH4202. For some reason, despite regular changes of my well filter, my water has suddenly taken on a bluish tone. Coincidentally (?), it's the same blue as the Amtrol tank. Any connection here? Any experience with this phenomenon?

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This is not related to the well tank. A bluish tint to the water is generally related to the PH and copper corrosion of plumbing. Electrolysis caused from degradation of dissimilar metals and softened water can cause this to occur also. It is rare for the PH of water to change drastically but the water chemistry can change, hardness, iron, H2S etc. I have seen Tannins in water impart a bluish tint also when they are present in very slight amounts. Have the water tested and check for any corrosion of plumbing in the home.

Posted on May 22, 2011

Testimonial: "Absolutely outstanding response! It was not the answer I was expecting, but the possible solutions given were extremely thorough and helpful!"

  • RJ H2O
    RJ H2O May 24, 2011

    I am glad I could help and hope the suggestions get you pointed in the right direction. I appreciate the kind words. You may find the tip on changing sediment filters and problems with housings helpful also.
    Good luck and Good water,



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