danlu_gt

I'm tempted to get an Assuie Gold Torch.. Anyone have them? Do they actually look like this: http://uniquecorals.com/euphyllia-glabrescens-ausiie-gold-torch-coral-2-stock-frag.html '> http://uniquecorals.com/euphyllia-glabrescens-ausiie-gold-torch-coral-2-stock-frag.html ?

Just want to make sure pics is not just high saturation and contrast. [emoji39]

I'll bring some Monti cap and bird's nest for trade.

3.5" deep max, the other 2 dimensions are flexible but want to hold at least one gal.

Free to first to come get it. Cheato is larger than softball size.

I got a couple frags for red/orange montipora cap and assorted bird's nest.  Looking to trade some sort of slim water container/jug for skimmate collection.  Right now I'm using a slim Minutemaid OJ but it's just slight too wide and can't close my stand door completely.

Otherwise, if you just want some easy sps frags, they're $10/ea OBO.

So want to get it.. been researching how to support my floors with floor jacks.  

How old? Any scratches? Any issues with silicone seals?

Hi Robert, just send you a PM.

I don't have a DC3000 pump but if you're in town and can drop off your pump for a day or two then I can make mearsurements and make one.

Hi the clark, I forgot you already have a impeller.. if you just need the open volute, it's $25.

Hi theclark, you wanted an open volute style right? This will replace the existing pump housing. I'm asking $55 for it. If you're OK with that, email me and I'll send you drawings for confirmation. Will take 1-2 days to print.

My email: danlu_gt@yahoo.com

Daniel

$30 for needle impeller plus volute

$55 for open volute style (above plus bubble plate and pump housing)

$5 to ship

You'll have to let me know which model pump it's for. As of now, I can make them for DC 6000, 9000, and 12000.

Hi theclark, are you using the DC12000 to also draw water into the skimmer or just internal circulating? If drawing water in, I'm guessing you'll be using standard 1.5" PVC fitting?

PM me if you're interested in custom made needle wheel and volute.

I've over specs the pump since I only have 6" dia acrylic tube for skimmer body. With Jabeo DC6000 at lowest setting, it still pulls in too much water/air mixture that lots of micro bubbles escape. Was thinking I would be able to overfeed my fish with larger pump.. haha Will have to order new pump, maybe a DC3000 or DC2000 then print impellers for it.

Finished a 8+hrs print for the new base. Now with built in gate valve for both water inlet and outlet.

http://youtu.be/XTolX9H0_H4

I printed another base unit, added water outlet with slot for gate valve control but forgot to make a hole for the pump's electrical wire. Here's a video of the new base with skimmer body. I'll need to design the neck to attached existing collection cup.

Test on fresh water with 2 drops of dish washing soap:

Update on where this prj is now...

Background:

Initially my goal was to use the Jabeo DC 6000 for my Coralife Hang On Skimmer (older, not cone version). The original pump was too weak plus I have it sitting in my sump so water level is much lower for that pump to handle. Then I replaced it with an Reef Octopus OTP 3000 (65 watt) I have sitting around. That worked but was a bit noisy and heating up my water too much in the summer (I have a 50 gal cube).

Results:

My 3D printed needle wheel worked great on the Jabeo in bucket and 10gal tests but only when the output of the pump is not restricted too much. I think this is an inherit issue with any skimmer pump. As too much back pressure, skimmer pump air draw drops significantly. Unfortunately without drilling into my Coralife Hangon Skimmer, I was only getting slightly better air flow than the OTP3000. Coralife Skimmer have very small, 1/2" inlet.

Prj complexity:

3 days ago, I decided why not just replace the entire pump housing like some of the newer skimmers. This way not only will the pump go inside the skimmer it's now vertical so an even bigger pump can fit in a much smaller space. Now, I would be able to feed my fish friends even more.. hehe So, I started designing the skimmer housing the fit the DC6000 (I believe it would also fit the DC9000 and DC12000, as they are just longer). Calculate the surface area for bubble to escape was simple geometry. I separately my design into 6 separately 3D printed parts (for pump housing, adjustable volute, intake screen) which parts will be screwed on and other snapped together. Ideally, I would like to make them with fewer pieces, but I don't like using supports in my printing. 3D printing needs supports for overhanging section, but supports do not break off cleanly which will require sanding to polish off. So, it's a trade off but now it can be taken apart for easy cleaning. It took about 2 days to print. The electrical connector went bad during one of my print which caused a mess to clean the injector head. However, it printed enough of the final piece for me to run some tests in a 10gal fresh water with 2 drops of dish washing soup.

Here are some images:

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There's a gap between the blue pump and the pump housing. That was a measurement error by me, will be fixed in next version. The largest white disc should have a 2" high lip so I could slide a 6" dia acrylic tube in it but my printer had an issue. I also had a 5" dia acrylic tube laying around so that works pretty well to channel the bubbles and reduce turbulence.

[ATTACH=CONFIG]13764[/ATTACH]

Top down view.

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The screen snap onto the volute and can be turned to adjust the water inlet size. Stronger pumps can draw more air if water inlet size is slightly bigger, too wide open will have poor performance.

Final goal:

I have some 6" clear acrylic tubes from old DIY down draft skimmer back before needle wheels came out. It worked great but needed a very big pump (175 watts). I will cut out a 12"-15" section as the new skimmer body and printed an adapter so I can put screw on the Coralife skimmer collection cup and neck. If everything works well, I will make DIY skimmer pump upgrade kits avaliable to drop into existing skimmer as long as the base is 6" dia or larger.

Here's my impeller design.

[ATTACH=CONFIG]13664[/ATTACH]

Here's a pic of my adjust intake size volute.

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I got my ebay Dwyer but I don't think it's calibrated correctly. When I tested it with my Reef Octopus OTA-3000 skimmer pump (65 watt), it barely moved the ball up in the Dwyer. The Dwyer I got has range from 10-100 SCFH. Anyone has a Dwyer or skimmer with known SCFH I can verify my Dwyer?

When I tested my Dwyer with Jebao DC6000 (40 watt), the water intake size make a big difference. If it's too small or too big, not much air is pulled in. Seems like around 16-18mm diameter water intake is optimal for the DC6000. I'm guessing stronger pump will require slightly larger water intake size. My current Dwyer shows my skimmer impeller to pull around 15 SCFH. Ok, maybe someone can educate me on how to read the dwyer? The metal ball is fairly big. The top of the ball can it 30 SCFH mark will the bottom hit 20 SCFH. I'm using the middle of the ball the make my reading. Again, if anyone has working Dwyer that I can verify my results that would be great.

Seem to pull more air with increase the size of the water intake. My Dwyer isn't here yet but just from hearing the air suction sound.

Another change, increase the diameter of the impeller and seem to make a huge improvement (suction sound now 2-3x louder). Wish my Dwyer is here already. Before I just made it the same size diameter as the regular impeller.

Ordered a Dwyer meter to start testing. Changed the intake venturi design to allow adjustable size for water inlet. Been playing with it for a while and the inlet size makes a big difference.

wow.. that's a real big air intake. Ok, I'll make larger ones to see how it work.

Anyone got a air flow meter I can borrow to have more scientific testing?