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[APD] UV Sizing
Scott H. said
>Consider going to a 2" or better, a 3" diameter housing.
>I've got abook around here somewhere that describes those
>as closest to optimum. I'll see if I can get my hands on
This is very interesting. I would certainly like to study that information.
I read the opposite into all the info (advertising hype) I could access on
all the commercially available aquarium UV sterilizers. They boast about
getting all the water as close to the quart tube or sleeve as is physically
possible. It fact with most of these, they say you must run them at reduced
flow rates in order to kill parasites, because of the small cross-sectional
Yes, with a larger diameter the water velocity will be less. But much of
it will be further away from the tube. I choose the ID to give me a small
space around most of the tube. I also put it on the Eheim 2217 that pushes
water into my 3 inch diameter CO2 reactor because the flow is less than from
my other 2217 which has no auxiliary gear hooked up to it.
I have another UV tube I purchased for my other tank so I can build the
other sump differently.
Anyone have any suggestions on making it safer by using something like a 1:1
isolation transformer? Somehow I think it would still be a danger since a
short is a short.
(or Steve Pituch in Corpus Christi)
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