Eductors?

[iVgOnMaD]

No , no disadvantages, its actually a good idea

[iVgOnMaD]

some info i found

http://www.advancedaquarist.com/issu...003/review.htm

[iVgOnMaD]

My returns are drilled about 4.5" down from the water line. Once the pump stops, the water drains out of these. Right now, I have locline fittings that allow me to position a higher return height. Running the eductors would put me back to the drilled level. I'm open to any suggestions that would bypass having to do another sump. I hear bad things about check valves so I'm hoping not to go that route.


Allen

You could always add a remote water bin that is connected to a part of your sump where the level never changes, the sump would be drilled as close to the bottom as possible and attached to the sump addition by means of a hose or plumbing. Then, you would have to put a PH in the extended sump with a hose attached to the nozzle, you can run the hose back through the piping and back into the main sump to generate circulation between the 2 sumps.

This will increase your water volume and increase the amount of water that can siphon back into the sump. You can also put LR/cheato in there and treat it as a remote refugium.

the water level will be the same as the water level in the sump where the tanks are connected so make sure both are the same height.

HTH

[JoeJ]

Okay, I went out to Lowes and purchased the parts. A Lowes guy was very helpful in finding all the parts from the previous post. He had to take out the 1.5" reducer coupling (#25017) from another group item, so I hope it's an exact match. I guess I'm supposed to glue that part somehow; I'm still catching up on the instructions.

I noticed that there was a little discussion on replacing or modifying the loc line outlets with the eductor. I wasn't able to find a final answer, though. It would be nice to allow for positioning the eductors.

So, my tank set up is a 110 gallon with two corner overflows. There are two loc line returns coming out of each overflow box (pic). There is one 40RLXT Iwaki pump that supplies the returns from the sump. This page says that I can squeak by with two.

Q1: Any suggestions on where I should install the 2 eductors? Replace the two inside loc lines or the two outside or...? I'll find out tomorrow if it'll even be a simple replacement.

Q2: Is there really a way to hook it up to the loc line?
A: Found buried in the ReefCentral Thread: loc line 3/4" Double Socket

Thanks!

[iVgOnMaD]

yes, those sockets are what you can use to put them on lockline.

2 eductors will run great with that pump, I would put them on the outlets that are on the outside. The problem you might encounter is the need to close off the other two outlets. You could always put 4 eductors in the tank and use 2 pumps, one for your return from the sump and one for a closed loop.

[JoeJ]

Okay, just so you know, I'm not experienced and aquarium plumbing. The only other plumbing I've done is build 2 Durso standpipes which, so far, are working well.

I finished building 2 eductors to your specs. The PVC glue is cured and rinsed. But, now I finally discover that I have 1/2" returns for the 3/4" eductors.

Any quick suggestions?

[dj9264]

Bushing.

[iVgOnMaD]

there is adapters for 3/4" to 1/2" at any Lowes or HD

[iVgOnMaD]

if you are ever in the eastlake area or want to take a trip down here to check out how I set them up, LMK

[iVgOnMaD]

Never heard back from u JC, did you get them installed?

[Diver Dan]

How do you mount them on loc-line?

[iVgOnMaD]

you get a double socket adapter like this:

[JoeJ]

Never heard back from u JC, did you get them installed?

Thanks, GoneMad
So......I did go the route by adding adapters for the adaptors on the eductors to fit on my 3/8" returns. But, it really added more length to the overall design. I didn't like its over-sized, clunky, and fixed look. I should have tried and elbow like your other design.

It would have been nice to have the whole design scaled back for a 3/8" return. But, I'm unsure what kind of impact that would have.

The flow was good for the two eductors and the two extra returns plugged. I just didn't get my hands on that loc-line adapter for more flexibility.

Also, I thought about my set up a little more. Even though it's a good idea to cut down on electrical pumps, I have to have at least one device that will run on a backup battery in case of pump or electrical failure. That's where my Vortech (recently moved to this tank because of upgrade completion) comes in handy. Plus, it really does "educt" a lot of water .

I ended up adding back the loc-line, but with flat outlet heads found at AW.

Anyone interested can have a try with the eductors I've made. (Aug. 21st meeting at my place).

[Reef Papi]

Someone asked whether or not these educators would work on an Eheim 1262. Cosign on that question. I have a 1260 split into two returns currently with loc-lines on both but im willing to replace the loc-line with these educators if it will work with my pump.

The Eheim 1260 is rated @ 654 gph I think. My current setup has about 5.5' of head on it. Not sure if this is enough pressure to run the educators. Any advice would help.

[iVgOnMaD]

Someone asked whether or not these educators would work on an Eheim 1262. Cosign on that question. I have a 1260 split into two returns currently with loc-lines on both but im willing to replace the loc-line with these educators if it will work with my pump.

The Eheim 1260 is rated @ 654 gph I think. My current setup has about 5.5' of head on it. Not sure if this is enough pressure to run the educators. Any advice would help.

You can leave the lockline and add the eductor to it. I would add a SCWD to the setup so you can run 2 eductors, otherwise I would personally only use one with that pump.

What size tank are you adding this to?