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Old 11-28-2014, 01:33 PM   #1
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SunSun 404B UV bulb - worth replacing

As I understand it UV bulbs do not last long. Not sure what "long" is though.

I also understand that $10 bulbs (which this approximately is) are usually not any good, regardless.

And I suspect the flow rate past it is too high regardless.

Is all that correct?

Is there any point in replacing them?

In fact, would it be better to remove the bulb and case, and seal off the socket, giving more room for flow through the column, and not bother with the UV?

Anyone done that?
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Old 11-29-2014, 03:14 AM   #2
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If you don't have cloudy or green water do nothing. Leave it's deadness there.
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Old 11-29-2014, 08:52 AM   #3
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If you don't have cloudy or green water do nothing. Leave it's deadness there.
I'm with fatboy... i have a 304b, the uv seems to have worked great in clearing a green tank.. turned it off though and only really run it for a day after a wc. You could replace it for the same reason or just axe it if nothing is amiss??

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Old 11-29-2014, 10:40 AM   #4
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So you think it actually works?

I don't have observations to say it doesn't, just most things I have read say it won't do anything.
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Old 11-29-2014, 11:00 AM   #5
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So you think it actually works?

I don't have observations to say it doesn't, just most things I have read say it won't do anything.
Call it a coincedence.. my tank was green ggreeeen.. hooked up the sunsun and it wasn't green the next day???

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Old 11-29-2014, 05:40 PM   #6
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Call it a coincedence.. my tank was green ggreeeen.. hooked up the sunsun and it wasn't green the next day???
Well, it's one more data point than I have. I haven't had a problem where I expect to see an impact visually.
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Old 11-29-2014, 06:11 PM   #7
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It definitely kills green water algae, but that's about all it'll do. As mentioned, if you aren't having an issue, I would just leave it alone.
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Old 11-29-2014, 06:16 PM   #8
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If I recall correctly UV bulbs need to be replaced every 6 months.
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Old 11-30-2014, 11:41 AM   #9
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It definitely kills green water algae, but that's about all it'll do. As mentioned, if you aren't having an issue, I would just leave it alone.
Well, if it really works, perhaps I should turn it off until I have green water, save it for when I need it, rather than continually replacing it.
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Old 11-30-2014, 11:44 AM   #10
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Well, if it really works, perhaps I should turn it off until I have green water, save it for when I need it, rather than continually replacing it.

I think that's the best plan.
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