Tannin removal


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Hi, I would like to know the best way to remove tannins that are causing water to be dark but clear. Charcoal? Thanks for any help. (My garden has been overtaken by a neighbor’s huge trees. I manually remove leaves etc. daily, but water remains dark.)
 
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Mmathis

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Activated carbon, like is used in aquariums. I have read another source that recommends the use of polyester quilt batting — like we use to collect “fines” from the water.
 
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I use activated carbon too, but I don't worry about getting it perfectly clear. I think a bit of darkening in the water looks natural so I don't fret too much about it.
 
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I use activated carbon too, but I don't worry about getting it perfectly clear. I think a bit of darkening in the water looks natural so I don't fret too much about it.
Lisa do you run the Incoming water over the carbon, or have it in your filter?
 

Mmathis

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I use activated carbon too, but I don't worry about getting it perfectly clear. I think a bit of darkening in the water looks natural so I don't fret too much about it.
I’m like you. I get the bulk of it out, but then let nature take its course. Apparently an excess of tannins will mess with the pH and can be harmful (I think it reduces O2), but according to what I’ve read, it would take a lot of tannins to cause any harm — a lot more than we would ever see in a backyard pond.
 

Mmathis

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Lisa do you run the Incoming water over the carbon, or have it in your filter?
I think you could do it any way that puts the water in contact with the AC. Personally, I put mine in a mesh (lingerie) bag, and stick it in the filter. AC will reach a saturation point and will have to be replaced.
 
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I buy mine in net bags, like a dozen at a time. I toss one in where the bog water flows out and the other at the end of our little waterfall.
 
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Mmathis

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I buy mine in net bags, like a dozen at a time. I toss one in where the bog water flows out and the other at the end of our little waterfall.
Where do you buy your AC? I end up buying a bunch of boxes from a pet store.
 

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