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Group: Forum Members
Last Login: 6/14/2008 5:19:11 PM
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| First, I wanted to say that these units come highly recommended from many and I am sure the issue I am experiencing is an isolated incident. I started to discuss some of this over in Steve Pro's Coral Farm article, but I didn't want to post too much as I was afraid it might be too intrusive to the purpose of his thread. Anyway, I am having problems making pure water. Here is the setup: (h2o) --> {TDS In} --> (5m sediment) --> (1m sediment) --> (carbon filter) --> [kati#5] --> [ani#5] --> (carbon filter) --> {TDS Out} TDS In - ranges from 175 to 250ppm
TDS Out - ranges from 10 to 15ppm Per Steve, I tried to remove the last carbon filter and that had no affect on the results. I also tried to insert an RO membrane before the setup and it resulted in the same output. At this point I started to wonder if my TDS meter was out of whack, so I tried to track down some calibration fluid -- no luck. I am desperate to get some good water, so I purchased a second TDS meter and found that the meters were within 1 to 2ppm. At this point I a graping at straws. I re-read the poorly translated instructions and want to make sure of a few things. - On the Kati / Ani units I have the tubes going as shown in the picture. Logically this is how I would think they would be hooked up, but int he instructions, it has a "before starting to work" and a "operation" hookup. The "before starting to work" is the way I currently have them hooked up. The "operation" is to switch the hoses so that the water gets pushed down through the resin. This didn't make sense to me, but at this point I am looking at anything. 
Any ideas will be greatly appreciated. Thanks.
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Group: Moderators
Last Login: Yesterday @ 2:21:52 PM
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The water should go into each unit through the outer connection and come out through the center one. I don't know how much of a difference it makes, but that is how the instructions direct you to operate it.
Steven Pro, yeah that is my real name.
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Group: Moderators
Last Login: Yesterday @ 2:21:52 PM
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How fast are you running the water through the units? I aim for 10 gallons per hour.
Steven Pro, yeah that is my real name.
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Group: Forum Members
Last Login: 6/14/2008 5:19:11 PM
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| Ok - after I re-read the instructions that is what I thought, but it made more sense to me the other way. I will switch it and run for a while to see the result. I have run it at many different speeds leaning towards slower thinking the more contact time the better the water quality. Most of the testing I have been doing has been a little slower than 10gph. Thanks and I will let you know what I find.
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Group: Forum Members
Last Login: 6/14/2008 5:19:11 PM
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 well, after running the through the system for 30 minutes (about 5 gallons) with the lines per the "operation" method, the TDS out has dropped from 17ppm to 14ppm. I am going to continue to run it this way to see if it continues to drop, but I can't imagine using this water. Since I have actually run less than 100gallons against these units, is there any possible reason for me to attempt a recharge????
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Group: Forum Members
Last Login: 6/14/2008 5:19:11 PM
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 Guess what. After regenerating the resins, I am producing perfect water. ???? I am starting to think Kip was right and something may have happened to the resins during shipping -- freezing possibly. Even though I am producing good water now, for amount these units cost, I am going to inquire with Kip to get them replaced.Anyway, thanks for your help.
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Group: Forum Members
Last Login: Yesterday @ 1:43:11 AM
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I just picked up the #10 series(supposedly unused) for $100 (I believe thats a good deal?  )
Didn't come with any instructions, but I was just going to hook it up so the water flows UP through the media, like practically all similar media setups. I find it odd that the instructions would say the opposite.
So, it's Kati stage first, or does it not matter?
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Group: Moderators
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| I don't know if it matters, but the water is supposed to flow top to bottom and through the red Kati first, then through the off-white Ani. If the water flowed bottom up, the media would likely tumble and churn and this might not be a good thing given the way ion exchange works. Resin continue to ion exchange even after they give up the charged H+ and OH- giving up weaker charged ions for stronger bonded ones. If the resin tumbled, used media might end up nearer the output where it would give up some of the bound ions.
Steven Pro, yeah that is my real name.
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Group: Forum Members
Last Login: Yesterday @ 1:43:11 AM
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Understandable. Thanks 
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