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UV - reconditioned?

Discussion in 'Articles' started by Gerryd, Aug 30, 2008.

  1. Gerryd

    Gerryd Plant Guru Team
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    Hey all,

    I just received the following UV sterilizer for my setup.

    Gamma Aquarium UV | Current What's Next

    Unfortunately, the 40 watt 1403 model is not shown. My lit says the 40 watt does not come with the threaded/barb fittings that the parts list states, but nothing about no viewing ports.

    Looking at the unit and the literature that came with it, and also comparing it to the pics/verbiage on the various web sites, I see that my units does NOT have the viewing ports on each end. Plus, the end caps themselves look like they were fastened after and not as nicely as if from the factory.

    The following link has 4 pics of this.

    gerrydirish/UV - Photobucket - Video and Image Hosting

    The first 2 are the better ones. The first shot shows a nice connection/sealant at the cap and the unit body. Rotate the unit and the same end shows a lot of silicone and not as nicely finished as the other.

    Same thing at the other end.

    Plus, the end caps themselves are just standard end caps with no viewing ports of any kind. Not like the literature at all!

    So, is it possible this was re-conditioned somehow and sold as new?

    Do you think it is safe to use it?

    Money aside, I want to be SAFE.....I will follow up with the vendor separately if this unit is not new.

    Other thing is that the 2" slip bushings fit into the unit with not that much resistance. I know the PVC cement will help seal it, but seems pretty easy to me and should have more resistance to install/remove.

    I appreciate any thoughts..........
     
  2. jeff5614

    jeff5614 Prolific Poster

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    I have the 25 watt model and just looking at pics of the 25 and 40 watt models online it doesn't look like the 40 watt model has the viewing ports. At least not the same ports as the 25. Your's looks just like all the pics I can find other than you can't really make out the seams in any of the vendor pics. Have a look at the two:

    Current USA Gamma UV Sterilizers - Quartz-tuned Ultra Violet Sterilizers
     
  3. mrkookm

    mrkookm Guest

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    I had this model in use for over a year before I sold it to get the smaller model and it does have viewing ports (see pics below). If you look closely at my old UV pic you'll see that I had to use my own barb fittings as well :)

    As far as the glue job goes it's all aesthetics, and that will hold just fine with no issues. These are just black PVC pipes joint together by solvent, so a little spillage IMO is acceptable. When was the last time you did a flawless solvent job :)

    [​IMG]

    [​IMG]
     
  4. Gerryd

    Gerryd Plant Guru Team
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    Jeffs5614,

    How do you like that 25w model? Does it make a difference for you? What size tank are you using it on?

    Yes, I don't think the 40 watt comes with the viewing ports either.......

    Oh well.

    Mrkookm,

    Is that the 40 watt in the two pics? The second looks like my unit for sure.

    I looked at the slip bushings, and there seems no way any light can shine through there...

    It's never happened lol

    Understood, I just assumed that a machine made it and there was some technique to clean the excess, is all. I must have missed that episode of 'ultimate factory' :)

    So, on the slip bushings, they do not fit anywhere near like a normal PVC pipe and a slip fitting.

    A normal PVC you can slightly connect the slip coupling and hold it upside down and it will not fall out.

    These bushings would fall out in a second.

    I am very concerned about leaks.....

    I will install the bushings, and fill it with water. Then I will connect the 2 ends with flex hose and hang it upside down for a bit. If they leak, this will show it, so no need to put it under pressure, yet.

    I know the final installation will be upright, but thought this would be a decent way to give a preliminary check.

    Thanks for the replies.
     
  5. mrkookm

    mrkookm Guest

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  6. jeff5614

    jeff5614 Prolific Poster

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    Gerry, I have had the 25 watt on a 75 gallon tank for a couple of years. I had read good things about them as far as killing parasites, free floating algae, etc and thought I'd give one a try. I can't really say that it's contributed to the clarity of the tank but I just feel a bit better knowing it's there from the standpoint of it eliminating pathogens.
     
  7. Gerryd

    Gerryd Plant Guru Team
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    Thanks for the replies......

    Mrkookm, so is your old unit the 40watt??????????? What size units are shown in the pics, please?

    Well after looking at it again, the slip bushings do stay in when held upside down if I swap them, a slight resistance and better than I stated, but still not like normal PVC and a slip fitting...

    A little shake and they come tumbling out.............

    Do I have to fill with water to test?? I assume so or the bulb may get too hot and be damaged?

    BTW, is there an input and output side, or does it matter which way the water flow goes??? I see no flow directors or arrows......

    Yes, I don't expect great things, but would like to see if it adds anything.
     
  8. mrkookm

    mrkookm Guest

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  9. Gerryd

    Gerryd Plant Guru Team
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    Ok.

    So I 'assembled' the unit to run a dry test with the bulb.

    Bingo. Light is emitted from the ENDS as is shown in these two pics:

    Pretty cool hey?

    Thanks for the testing suggestion.......I should have thought of it myself, but the destructions, I mean instructions, stated not to run w/o water, so was trying to be good :)
     
  10. mrkookm

    mrkookm Guest

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    Wow thats even better than my old unit view!
     
  11. jeff5614

    jeff5614 Prolific Poster

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    A better view than mine also.
     
  12. Gerryd

    Gerryd Plant Guru Team
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    Well, FYI, the inlet slip bushing leaked like crazy when I installed it earlier......

    I had a feeling that it might, so was prepared and not surprised. Disappointed, yes, surprised, no.

    You can read all about it in the Mazzei, UV placement thread.......

    Back to the drawing board.......
     
  13. nopq475

    nopq475 Guest

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