Results 1 to 10 of 10

Thread: Should I care if I have tannin in my water?

  1. #1
    Lazy Days is offline Junior Member
    Join Date
    Dec 2010
    Location
    Mid Michigan
    Posts
    29

    Default Should I care if I have tannin in my water?

    A lab test of the water at my cottage indicates I have 0.6 mg/L tannic acid in my water. The lab tech seemed a little surprised. The norm appears to be none or a lot. I am guessing I have something in between.

    Should I care? How much is too much? Dose this level of tannin gum up water softeners or iron filters? I ask because I am renewing my water conditioning equipment at my cottage and would like to know if tannin is anything other than an aesthetic issue.

    My well is over 50 years old, made of round clay tiles and close to a river loaded with tannin. Not a big surprise that some tannin makes it into the well. My coliform was negative, so I guess the water is safe.

    I want to avoid a new well like to couple of my neighbors have. They’re deep, 380 – 400 feet, the water taste salty, it stinks like rotten eggs, and turns everything black.

    Opps, I am losing my dsl connection, time to fly, thanks

  2. #2
    Akpsdvan is offline Senior Member
    Join Date
    Mar 2010
    Location
    Alaska
    Posts
    123

    Default

    Not much can be done for tannin, been toying with some thing for years and there is not much that will work with out dropping about 18k to treat tannin.
    It will slowly stain items in the house and make the tube water a little color like some one was there before you, but treatment wise there is not a whole lot that can be done.

  3. #3
    Andy CWS is offline Moderator
    Join Date
    Dec 2006
    Location
    Port Clinton, Ohio, United States
    Posts
    747

    Default

    You can easily take care of that tannin at a very low cost. Just add about 2" of an anion resin to treat tannins on top of your softener resins. This should handle it very well. You won't need to remove the softener resins.

    Andy Christensen, CWS-II

  4. #4
    Lazy Days is offline Junior Member
    Join Date
    Dec 2010
    Location
    Mid Michigan
    Posts
    29

    Default

    Sorry for the slow response. My dsl goes out a couple times an hour, generally only for a minute or two, but sometimes for three or four days.

    Tannin, manganese, or something is causing me problems in my cottage water. I have been reading everything I can on residential water treatment, but have no practical experience. From my reading, I am thinking my real problem may be, that it is a cottage, and sits vacant most of the time. Also posting questions about one element of my water at a time may be a poor approach as well.

    I will repost with all the data I currently have on my cottage water.

    Thanks akpsdvan and andy.

  5. #5
    TRT
    TRT is offline Junior Member
    Join Date
    Sep 2011
    Posts
    6

    Default

    Andy, tell me more about anion resin. What is it and how does it get applied?

    Thanks!

    Tim

  6. #6
    Andy CWS is offline Moderator
    Join Date
    Dec 2006
    Location
    Port Clinton, Ohio, United States
    Posts
    747

    Default

    Anion resin works in the opposite of cation resin. It removes negatively charged ions instead of positively charged ions. Anion resins for tannins are usually a whitish color roughly the same size in diameter. Fortunately, they regenerate with the same salt as cation resins so they can be added to a softener and still be effective.

    Andy Christensen, CWS - II

  7. #7
    TRT
    TRT is offline Junior Member
    Join Date
    Sep 2011
    Posts
    6

    Default

    Quote Originally Posted by Andy CWS View Post
    Anion resin works in the opposite of cation resin. It removes negatively charged ions instead of positively charged ions. Anion resins for tannins are usually a whitish color roughly the same size in diameter. Fortunately, they regenerate with the same salt as cation resins so they can be added to a softener and still be effective.

    Andy Christensen, CWS - II
    Thanks , Andy,

    Now where do I find the anion resin? Also, do I simply add it to the salt tank?

    Tim

  8. #8
    Andy CWS is offline Moderator
    Join Date
    Dec 2006
    Location
    Port Clinton, Ohio, United States
    Posts
    747

    Default

    These would probably be special ordered from a plumbing supply store or a water treatment dealer unless your area has this problem in common. No, you would add them to the softener tank by removing the valve. about 2" of anion resins may do the trick. What size is your softener tank, make, model if you can tell?

  9. #9
    TRT
    TRT is offline Junior Member
    Join Date
    Sep 2011
    Posts
    6

    Default Softner make

    Andy,

    At this point were are searching for the right method of treatment. So, we have not purchased anything yet. Knowing that we have some tannins is reason to search harder for answers. Do you have any recommendations on softners?

    This property is a seasonal cottage. We prefer to minimize expense, yet get the job done. Iron is high and we are concerned that the tannins will just carry the Fe through a filtration system.

    Thanks for your help!

    Tim

  10. #10
    Andy CWS is offline Moderator
    Join Date
    Dec 2006
    Location
    Port Clinton, Ohio, United States
    Posts
    747

    Default

    Always get a complete and through water analysis before designing a system. Taking short cuts because it is a cottage can come 'round and bite you. Do you have freezing issues in the winter? Report your water test results especially iron, hardness, TDS and tannin count.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •