Eductors?

[iVgOnMaD]

UPDATE: "HOW TO" INSTRUCTIONS AND PART LIST AVAILABLE
UPDATE: ADDED PICS TO THE "HOW TO" INSTRUCTIONS

Anybody ever use an Eductor on their return outlet?

They are supposed to increase water movement by 2x-5x.

Just made me a couple out of 1.5" Black PVC and they seem to work way too good . I have sand dunes moving all around my 90g tank, before I just had two 500gph returns that made a very low amount of flow. With the eductors it is WAY STRONGER, seems like at least a 3x increase in flow IMO (1500gph per outlet) and it gave me great results with a widely dispersed flow from the return instead of the normal jet that can be dangerous for softies.

I am using a Little Giant MDQX-SC rated ar 1100gph split into two 3/4" outlets at a 4' head which gives me around +-500gph per outlet.

I have two extras that were my practice prototypes, will trade for a couple frags if anyone interested.

Work good, just dont look as clean as the final versions.

Will post pics of my design and parts needed, everything is from HD or Lowes, and are less than $5 total.

[Redeye]

the plastic spouts for loc-line? I have 2 1" for sale

[iVgOnMaD]

Do they look like this?

[iVgOnMaD]

I will post my plans for all those DIY people, all you need is a small hack saw and a drill or dremmel tool.

[Redeye]

sorta, I'll post in equipment forum when i get a pic

[iVgOnMaD]

sorta, I'll post in equipment forum when i get a pic

sounds good

Anyone have any experience with eductors? Just looking for variations in DIY designs so I can take some more knowledge and make my version more efficient.

[iVgOnMaD]

bump!

[dj9264]

I use them on a sea swirl with the return. Got it from OG. Little blue tang got sucked up. Other than that I love them; 4x the flow for $20.

Let's see what you have built!

[phishphood]

let's see those plans.

[gemini]

ya they rule there are a couple on the diplay tank at the store i voluteer at they rule!

[iVgOnMaD]

Here are some pics of my design, I will list the parts used and instructions on how to put it together later.

Full tank shot (90g 36x24x24), you can see the sand dunes the flow created when the eductors were pointed towards the middle of the tank, since then I have pointed the eductors outward to reduce the flow. Never had that problem before the eductors



This is the actual eductor, not much to modify other than the holes I drilled, all pieces pretty much fit together on their own.






Here is a vid of it in action, you can see the swirl of air being sucked in when I cover the other vents. It educts a pretty good amount of water as you can tell.



Here is my sump in case any of you are curious.






What do you guys think?

[iVgOnMaD]

Forgot pics of the pump and return:

[phishphood]

Nice design. What's with the water on the rt side of your sump?

[iVgOnMaD]

Thats gonna be my refugium, its designed to take water from the bottom so it sucks up some pods.

[mmoore0803]

definitely want a parts and how to list