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01/19/2008, 12:01 AM | #51 | |
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1) Preventing channeling within the media. 2) Preventing air pockets within the media that kills the anaerobic bacteria which we're trying to culture. It really is not much different from calcium reactors if you think about it. You don't really need to recirculate inside calcium reactors either. It just makes it more efficient because of the reasons explained above. HTH, djfrankie |
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01/19/2008, 12:02 AM | #52 |
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Sorry double post.
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01/19/2008, 12:09 AM | #53 | |
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There are people that have modded Eheim canister filters, filter canisters and the such and it works for them. I rather go larger than smaller in this case. djfrankie |
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01/20/2008, 03:53 PM | #54 |
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hey, had 1 question, whered you pick up the gasket materal from? what type material would you recomend?
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01/20/2008, 06:14 PM | #55 |
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Did you do anything special to make the seal between the top flange and cap? Most flanges I've seen have lettering/etc on that surface. Was yours smooth? P.S. Thanks for taking the time to post up this diy. |
01/20/2008, 06:17 PM | #56 | |
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What I'm using is shower liner. They sell it at Home Depot. HTH, djfrankie |
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01/20/2008, 06:18 PM | #57 | |
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01/20/2008, 06:36 PM | #58 |
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Excellent!
I was hoping to find something like this (I always seem to need detailed instructions for diy projects, and your's are great)! Going to head to HD tomorrow and get to work. I have a question: is there a trick to drilling acrylic without ruining the drill bit in the process? Mine always get gunked up with melted acrylic that I can't get off. And would an MJ 400 or 900 be too week as the recirc pump? I have those two lying around. |
01/20/2008, 08:23 PM | #59 | |
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I use unibits and they leave a really nice cut. Use the 900 if you got it. If it's too weak just buy the 1200 and mount it on the same impeller housing. They use the same housing, but it should be ok. HTH, djfrankie |
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01/21/2008, 10:37 AM | #60 |
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I have started construction of a Sulfur Denitrator using this same design posted by the operator. I made a few minor changes, but will post photos and results as I near completion.
A few things I altered: *Using a mag3 instead of a maxijet *Ordered my sulfur 99.9% media from bghyrdro.com to save money *created the media strainer disk using a flat 4" insert PVC endcap... I cut off the ridges w/ a dremel bit, and then perforated it quickly and easily w/ a 1/8" drill bit. PVC doesn't melt/crack easily like Acrylic, and it was cheap. *Used 4" female adapters with male threaded 4" plugs on both ends... so much easier then worrying about 'gaskets' 'flanges' and what not. Cost less too. I would say the grand total for this project has came to about: $175. *** They do sell 6" PVC at menards, but all the fittings and pipe are so very expensive that it's cheaper to make dual 4" units probably, I may upgrade to a 6" unit in the future, but I only have about 5-10ppm nitrates holding fairly steadily... I just want to be able to feed the tank more often again, my skimmer is as fully modded/upgraded as possible, I have a RDSB (55G) and 2 refugiums (75/50G) on my 500G water volume system and still need more denitrating!
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01/21/2008, 03:34 PM | #61 |
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I have a bunch of 6" PVC pipe, would be nice ot use 6" for the sulfur part and then 4" for the media part... but then fittings are so expensive i wish i could figure out another way to attach ends and such on the PVC
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01/21/2008, 04:55 PM | #62 | |
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Can't wait to see pics of it. Couple of things: Fix the link so other people can find the media you're talking about. Wondering if the media you're talking about comes in a powder form as this has already been tried and found to clog the system very easily. HTH, djfrankie |
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01/21/2008, 05:33 PM | #63 |
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Got a quick question: you use a 5/8 Forstner bit to drill out the holes, but need a 3/8 pipe tap for the threads?
Just don't want to buy the wrong stuff! And the Jaco fittings are 3/8"? |
01/21/2008, 10:26 PM | #64 | |
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1/2" CPVC is 5/8" diameter on the outside. So yes, 5/8" for the 1/2" CPVC tubing and 3/8" pipe thread for your valves. djfrankie |
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01/21/2008, 10:34 PM | #65 |
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Thanks!
What about the hole for the effluent out? Do I need a smaller Forstner bit for that, or do they have 1/2" Jaco fittings? |
01/22/2008, 12:45 AM | #66 |
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Hi DjFrankie
I have a few questions in regard to sulphur filtration. I bought a fluidized Bed Filter, which I am going to use for a sulphur filtration. After reading your post, I realise that my filter does not have "degassing output", would that be a problem? I plan to use only one chamber with 3 medias, which are RowaPhos, sulphur and aragonite. Could you please help me with the best arrangement for the medias from bottom to the top? Will that actually work? Also, I read somewhere that using filter foam is not recommended as it gets clog very easy, is that true? and how often do you have to clean the filter? Thanks in advance NGC |
01/22/2008, 03:10 AM | #67 | |
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01/22/2008, 03:21 AM | #68 | |||
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HTH, djfrankie |
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01/22/2008, 06:46 PM | #69 | |
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Or does it need to be smaller? |
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01/22/2008, 08:25 PM | #70 | |
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01/22/2008, 08:28 PM | #71 |
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Well I got most of the stuff already , going to start building here really soon will let you know how it goes. wish me luck......
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01/22/2008, 08:29 PM | #72 |
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Hmmm....good luck ...LOL
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01/22/2008, 08:46 PM | #73 |
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asmodeus.... good luck. I am out in the garage right now doing some glue-ups so I'll update my thread here in a few hours with some progress pictures.
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01/22/2008, 08:53 PM | #74 | |
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nice to see you here. djfrankie |
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01/25/2008, 07:10 AM | #75 | |||
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Thanks Mate for your help NGC |
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