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  #51  
Old 11/25/2003, 01:15 PM
Dakan Dakan is offline
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What type of dremel did you buy. How much was it and where did you get it. Did you get the bits at the same place?
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  #52  
Old 11/25/2003, 04:02 PM
Imnaha Imnaha is offline
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Great Job!

You mentioned the glass was cut locally for you, what type of store did this and approximately what was the cost?
  #53  
Old 11/25/2003, 04:07 PM
Imnaha Imnaha is offline
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And what about your return plans?
  #54  
Old 11/25/2003, 09:23 PM
Tunjee Tunjee is offline
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Quote:
Originally posted by Imnaha
Great Job!

You mentioned the glass was cut locally for you, what type of store did this and approximately what was the cost?
Thanks Imnaha! It is a local glass shop, they cut and sell glass for windows etc. It was a whopping $13 for the 4 pieces of glass and ground and polished edges. Be absolutely sure to get your edges ground and polished, if you dont it will be sharp and a little jagged.
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  #55  
Old 11/25/2003, 09:26 PM
Tunjee Tunjee is offline
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Quote:
Originally posted by Imnaha
And what about your return plans?
All I can say for sure right now is Velocity T1 and Squid (among other things) on the way from Marine Depot.
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  #56  
Old 11/25/2003, 09:38 PM
Hef Hef is offline
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Tunjee, have you ever tried to do this in 1/2" glass.
  #57  
Old 11/25/2003, 09:43 PM
Tunjee Tunjee is offline
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Quote:
Originally posted by DaveJohnson
Just wanted to say thanks to Tunjee for this thread! I saw another recently, that you refer to, where someone drilled their tank (with fish in it) for a bulkhead.

After reading this thread yesterday, I went and got the dremel bits you mentioned and in no time at all had a bulkhead installed in what will be a refugium for one of my tanks. Leak tested overnight and it's fine. This weekend I drill one of my tanks (the 'fuge was "practice" )

It's really not difficult, just go slow and rinse often. Though it is a bit unnerving having that water on the glass while holding an electric drill in your hand.

Cheers,
Dave Johnson
Good job Dave! Its a good thing the dremel housing is plastic, working around all that water could be hazordous if it shorted out.
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  #58  
Old 11/25/2003, 09:48 PM
Tunjee Tunjee is offline
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Quote:
Originally posted by kheflw
Tunjee, have you ever tried to do this in 1/2" glass.
Nah, can't say I have.
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  #59  
Old 12/01/2003, 11:45 PM
chetm2 chetm2 is offline
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might try that on my 5.5 gal, thanks for the idea now I just need the guts.
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  #60  
Old 12/02/2003, 04:00 PM
mattydub mattydub is offline
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thank you to tunjee for this post...absolutely great info. I'm a newbie and questioning whether or not I have the gusto to give this a shot....

question...how much water do you use while driliing? how is it applied (i.e. hose running over the holes constantly or what?)

Thanks again...
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  #61  
Old 12/02/2003, 06:20 PM
Tunjee Tunjee is offline
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Quote:
Originally posted by mattydub
thank you to tunjee for this post...absolutely great info. I'm a newbie and questioning whether or not I have the gusto to give this a shot....

question...how much water do you use while driliing? how is it applied (i.e. hose running over the holes constantly or what?)

Thanks again...
Spray bottle works best. The more water the better, it keeps the glass dust from getting inbetween the bit and the glass. You'll know if youre not adding enough water if you see a fine powder start to form.
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  #62  
Old 12/02/2003, 06:27 PM
mattydub mattydub is offline
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great...thanks tunjee...one more question (famous last words right? ) how do you know what the flow rate is through the holes that you drilled?
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  #63  
Old 12/02/2003, 07:07 PM
Tunjee Tunjee is offline
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Hey Mattydub according to the calculator here at Reef Central:

Using the following input parameters
Gallons per Hour = 455

Drain and Overflow sizes are calculated as
Recommended minimum drain pipe diameter = 0.88 inches
Recommended minimum linear overflow size = 7 inches

So 910 gph since I have two 1" holes. The bulkhead necks it down a little (1/8") then back to 1" the rest of the way. Thats why it says 0.88 inches.
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  #64  
Old 12/02/2003, 09:03 PM
Reelfun20 Reelfun20 is offline
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I think he was asking (and I'm wondering too) how many holes/slots you decided to dremel out in the back. Did you use the calculator to determine that 7" was necessary, and drill your overflow that wide? Or did you just experiment until the flow rate could be handled by the holes?
  #65  
Old 12/03/2003, 03:29 AM
gumbybc gumbybc is offline
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just along for the great info, and I am stoked to see this thing in action!
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  #66  
Old 12/03/2003, 11:59 AM
Dakan Dakan is offline
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How many holes can you get from 1 diamond dremel bit. Which shaped bit works the best?
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  #67  
Old 12/03/2003, 12:19 PM
Mushroom Boy Mushroom Boy is offline
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Awesome work!!! Thanks for all the info and great pics!

I have a question regarding tempered glass. Living in a seismic zone, I have an acrylic tank, but am considering the purchase of a 40 gallon breeder (glass) and drilling for an overflow. Are the bottom panes usually tempered? TIA!
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  #68  
Old 12/03/2003, 04:09 PM
VaderWS6 VaderWS6 is offline
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Thumbs up

Awesome work man! Looking forward to seeing pics of it in action
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  #69  
Old 12/03/2003, 06:03 PM
mattydub mattydub is offline
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Quote:
I think he was asking (and I'm wondering too) how many holes/slots you decided to dremel out in the back. Did you use the calculator to determine that 7" was necessary, and drill your overflow that wide? Or did you just experiment until the flow rate could be handled by the holes?
Thanks reelfun...that's exactly what I'm asking...it doesn't really matter how many drains you have carrying water to the sump...what matters is those holes letting water GET to the drains, so how do you figure the flow of the little dremeled holes and how far apart to space them, etc....

thanks again...great post!
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  #70  
Old 12/03/2003, 06:40 PM
Tunjee Tunjee is offline
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Mattydub:

If you mean slots, the slots on mine are 1/2" apart on center and each slot is 1/4" wide, 1" tall. I cut a total of 18 slots. It spans 9" across the back of the tank. I read somewhere that 6" worth of these slots can handle 600 gph. And I think those slots were spaced further apart than mine. I have not tested this yet but that is what my research came up with.
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  #71  
Old 12/03/2003, 07:32 PM
JamesG JamesG is offline
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I got one suggestion! Add a peice of that 3/16 plate inside the box against the back of tank and glue it liberally. All thase slots in the back of tank seriously weaken that back panel. it would give me peice of mind if you reinforced it while youcan. But it's your floor.
  #72  
Old 12/04/2003, 10:16 PM
Tunjee Tunjee is offline
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D.I.Y porn















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  #73  
Old 12/04/2003, 10:19 PM
Tunjee Tunjee is offline
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  #74  
Old 12/04/2003, 10:20 PM
gumbybc gumbybc is offline
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just out of curiosity, what pump are you using as a return, and are you happy with it?
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  #75  
Old 12/04/2003, 10:59 PM
Imnaha Imnaha is offline
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Noise ???
 

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