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bbeck4x4 
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 Topic: Tank ideas for sqwd or closed loop?
Posted: October 12 2005 at 10:49pm |
I bought this tank from Kahuna last weekend during the tour and I have
been racking my brain trying to figure out the best way to plumb it.
here is a picture that kahuna had posted, What I am trying to do is
figure out what would be the best way to get good flow through the tank
using the existing bulkhead fittings, I have a sqwd that is working
really well in my 40, that I want to use in this tank, but I would need
a better pump. Also the closed loop that I have been reading up
on also looks like a good plan too.
any ideas?
all fittings are 1" except for the one on the left which is 3/4
Oh, and I have a 20 gallon sump for it and a 20 gallon fuge.
for the fuge I figured that I could "t" a line from the mag 3 that I have for the return and bulkhead the two 20's together.
Brian
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Carl
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Posted: October 13 2005 at 12:18pm |
I am going to bump this for Brian. I am also looking at going SCWD/SQWD and am interested in hearing what folks think about it and the flow rates. 3IQ calls out the below flow rates. I would need to get a SMALLER pump! What the... Also, nothing on the website regarding the larger unit.
Flow Efficiency Ratings
Below is data provided by one of our distributors as a result of flow testing. Using powerheads of various gph ratings they were able to provide flow-in ratings, flow-out, switching speeds, and efficiencies.
| Flow into SCWD |
SCWD Output |
Efficiency |
Switching Duration |
| 150 gph |
90 gph |
60% |
22 seconds |
| 180 gph |
120 gph |
65% |
16 seconds |
| 240 gph |
180 gph |
75% |
12 seconds |
| 270 gph |
210 gph |
80% |
10 seconds |
| 330 gph |
240 gph |
80% |
9 seconds |
| 400 gph |
360 gph |
90% |
7 seconds |
| 600 gph |
540 gph |
90% |
5 seconds |
| 720 gph |
660 gph |
90% |
4 seconds |
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In Syracuse
"I believe that forgiving them is God's function. Our job is simply to arrange the meeting." - Gen. H. Norman Schwarzkopf
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bbeck4x4
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Posted: October 13 2005 at 4:24pm |
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My thoughts were to change the middle bulkhead fitting to a 1 1/2 inch
bulkhead,(used for drain, or how much can a 1" line pipe flow ) change
the 3/4 inch bulkhead to a 1" to match the other side, then I could
plumb the sqwd under the tank between the left and right line.
what flow/pump would be good for this tank?
what would be best two twin nozzle lockline's sitting on top of the pvc
or two loops of 3/4 inch pvc pipe like a two part manifold, the
other possibilty was to run to a 3/4 inch pvc pipe on the left and
right of the tank with two or three nozzles only there.
there has to be someone that has done something similar???????
Brian
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Carl
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Posted: October 13 2005 at 6:04pm |
The SCWD gives you a maximum recommended flow rate of 1400 GPH. I would do my best to maximize that. You can do a bigger pump, but it would void the wattanty if they figure it out. This is the biggest obstacle I am having with the SCWD. Not enough flow for me. But either way, you're going to be restricted by the 3/4" restrictions no matter what line size you have before and after. Then your pump may try to compensate with increased pressure which can cause other issues. JMO
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In Syracuse
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ssilcox
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Posted: October 13 2005 at 6:17pm |
If you want oscillating and the SCWD isnt cutting it for you - try www.oceansmotions.com
Nice units.
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bbeck4x4
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Posted: October 13 2005 at 10:22pm |
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yes those look good, looks like the plan at the moment is to use
the two 1" pipes on the right as a drain line, I'll make a skimmer box
that will sit on the top of both of them.
then use the one inch in the back as a inlet line from a external pump in bottom.
the supply line will go up into a horizontal bar that will feed 4-6
lockline nozzles, I am thinking of running 4 for now and plugging the
other two(for future flow) maybe run a line up each side for cross flow.
the 3/4" line will go unused for now, as far as the sqwd I think
that the loss from this will be too great, for the gph that I need.
Brian
Marine Aquatics has recommeded a external pump(don't know what
gph it was, but it was using 1 1/4 input and output fittings, I think
comparable to the mag 24-36 They also gave me most of the ideas used
above.
Edited by bbeck4x4
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