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					Originally Posted by gregzz4  I like the sleeve idea.What about using an existing clear reactor and just wrap it in white paper. Easier to see inside with a flip of some scotch tape.
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 Thanks for the idea, and I was tossing around that idea too, but the tank I want to use it on doesn't have a fish room, so I don't want the light leaking to the sump area because I don't want to be cleaning the skimmer of algae all the time.  I'm going to try to design it in a way that it's easy to open and take a peek - I'm thinking a SCH80 union, but I don't know if they come in 6 or 8".  Going to see what I can figure out.  It looks like I can get an 8" to 3" PVC reducer bushing and then a 3" union.  These are pricey part though!  

  Maybe not the best option is the opening is smaller than the reactor diameter.
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					Originally Posted by mike31154  Your link comes up as a multimeter?? | 
	
 Oops, fixed.