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Thread: DIY UV sterilizer

  1. #1
    Registered User Levi's Avatar

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    DIY UV sterilizer

    I have decided that the premade units in the market just are not what I want so I will be making my own unit. Trying to source 3" grey pvc conduit and fittings right now

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  3. #2
    Senior Member bapicella's Avatar

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    What!?!

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  5. #3
    Just_Tim
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    Not sure about grey but I'm positive you can find what you need at Rampart.

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    Registered User Lakaikea's Avatar

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    I also like to live dangerously
    Zack | Lakaikea

  7. #5
    Registered User Levi's Avatar

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    I think I am going to run 4x of the 36w bulbs. I calculated that I need a 13w bulb at 60gph to effectively kill 99.99%

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    Registered User Levi's Avatar

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    Using the same calculation of I want to put it on my total water volume of I use 4x of the 36w bulbs and have the water flow past all bulbs before going to the tank I can run close to 1000gph with the same effective rate for my tank and turnover rate.

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    Sweet. Have you considered creating some diy corals? I've got some primordial soup you can have , so supposedly you can make anything you want from it if you give it enough time.
    Don't look here for a comment.

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    Registered User Levi's Avatar

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    I don't have enough free time for that

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    Registered User Levi's Avatar

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    Registered User Levi's Avatar

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    Registered User Levi's Avatar

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    Registered User Levi's Avatar

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    Senior Member bapicella's Avatar

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    Did you figure estimated cost for 1 unit?

  18. #14
    Just_Tim
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    Boxer shorts and late 90,s era Bluetooth aside this guy is one hell of a diy'er. I really like the sight glass.

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  20. #15
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    i ended up buying a UV filter instead of the DIY way. This is the model I got.

    http://www.drsfostersmith.com/produc...FZCFaQodUEMMjA

    Not sure if anyone has had experience with this model or not, if anyone has opinions on it that would be great. But good luck Levi on this project hope it goes well for you.

  21. #16
    Registered User Levi's Avatar

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    Quote Originally Posted by jrod34a View Post
    i ended up buying a UV filter instead of the DIY way. This is the model I got.

    http://www.drsfostersmith.com/produc...FZCFaQodUEMMjA

    Not sure if anyone has had experience with this model or not, if anyone has opinions on it that would be great. But good luck Levi on this project hope it goes well for you.
    The 12x uses a 36w bulb and a stainless steel insert which rusts. After taking apart a coralife turbo twist I will never buy one again. The total cost for the unit I am designing will be around $200 and will be 144w.

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  23. #17
    Registered User Levi's Avatar

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    Quote Originally Posted by Just_Tim View Post
    Boxer shorts and late 90,s era Bluetooth aside this guy is one hell of a diy'er. I really like the sight glass.

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    Lol yeah and part 3 he is all sweaty

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  24. #18
    Registered User Levi's Avatar

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    Registered User Levi's Avatar

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    I am having a hard time deciding on what to use for the body and fittings. I believe I am leaning towards using ABS. I know I have preached against using it and I found out why. Apparently ABS is inert for the most part. There are certain brands that add a mildew inhibitor into and on the pipe and fittings which would be bad for our tanks. If you are able to contact the manufacture and confirm that there is no inhibitor then you are good to go. Both PVC and ABS are not great against UV but the darker color helps. Also there is a black carbon additive to ABS pipe and fittings that greatly increases its resistance to UV. Even with the UV damage it only reduces the pipes ability to absorb HARD impacts, not the strength or rigidity of the ABS. Basically it is surface corrosion that makes it crack with a hard impact. What I would be using it for would not be in a place that I would have to worry about hard impacts. I want to clarify further that PVC has the same exact issue as ABS with UV light. The best option is PVC conduit as it resists UV the best but I am not able to find proper 3" fittings for my application that are at an even remotely reasonable price. I guess I could make the main body out of PVC conduit and then the fittings out of ABS.

  26. #20
    Registered User Levi's Avatar

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    ABS in reef tank on reef central thread

    also I believe the reason that ABS is not rated for as much pressure is because ABS is glued together, PVC is welded together. So if I use PVC conduit which is more UV resistant for the body with ABS fittings and use transition cement which does actually melt the abs and weld it to the pvc, I believe I will be able to use it for my UV sterilizer. Also I am only running around 1000gph through 3" ABS fittings so I am not afraid that it will be an issue.

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