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What type of fish is in the middle of CaptiveReefs (top left corner of page...hint it is the main character in Finding Nemo) )

Lasted sooo looong......


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  1. #1
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    Chris
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    Default Lasted sooo looong......

    Not bad for 3 years, and still spitting 10 tds! No DI.


    100 4281 - Lasted sooo looong......


    Unfortunatly, water production had gotten pretty slow.....

    Changed all filters and membrane today for the first time in 3 years!
    Likes Tom Toro liked this post

  2. #2
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    Chris
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    Default

    Not bad for a 9 year old E-bay system w/ some decent filters and membranes!

    100 4282 - Lasted sooo looong......

  3. #3
    larryandlaura - Reefkeeper
    Team CR

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    Nov 2010
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    Houghton Lake
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    Larry
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    Those are way over due!
    Hi my name is Larry and I'm a coral addict!

  4. #4
    creefer - Reefkeeper CR Member
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    Feb 2010
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    48116
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    Chris

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    WOW!

    I change my DI cartridge about every 3 months but have not done any of the filters in 12+ months and getting 0 TDS.

    Looks like a good decision to swap those out!

  5. #5
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    The new filters are putting water through about 4 times faster now. Very nice!

    Unfortunatly, the tds has gone up to 22, instead of the 10 it did before, 2 hours into running.

    I think my next purchase will be DI......cant hurt, right? It about time, lol!

  6. #6
    larryandlaura - Reefkeeper
    Team CR

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    It definitely wont hurt!
    Hi my name is Larry and I'm a coral addict!

  7. #7
    creefer - Reefkeeper CR Member
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    Feb 2010
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    Chris

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    You will LOVE DI! It's an inexpensive thing to get anyway.

  8. #8
    CR Member
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    Feb 2011
    Location
    Columbiaville
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    224
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    John

    Default

    Wow Chris those are umm nasty. How do you add a DI filter into the loop?

  9. #9
    AZDesertRat - Reefkeeper
    Subject Matter Expert
    Water Treatment

    Join Date
    May 2010
    Location
    Phoenix AZ
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    Default

    Please remember, the sediment filter and carbon block have very little to absolutely nothing to do with TDS, the yare there to protect the RO membrane from sediment, particulates, colloidal materials and chlorine. The former are measured in microns and up to visible with the human eye or about 40 microns down to maybe 1 micron or in some cases 0.5 microns. The latter, chlorie is usully present at around 1 ppm or mg/.L so would be 1 TDS.

    TDS or dissolved solids are just that disslved in the liquid not suspended and in the 0.0001 micron range, many many times smaller.

    The RO membrane is the most expensive piece of the system and the workhorse, removing 90 to 98% of the TDS, it makes no sense to not change filters when their sole purpose is to protecdt it so it can do its job efficiently. Dirty filters reduce pressure to the membrane making it less efficient and reducing DI life if you have DI, costing you money and lower water quality. Your reef suffers.

    What do you gain?

  10. #10
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    Nothing gained....

    I was just surprised, after 3 years, it was still spitting out a TDS of 10 w/o DI.

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