Discussion of the Week =Waterflows and designs for reef tank

[Scooterman]

I like the looks of those Eductors, I could use at least two!

 

[Grouperdog]

Tunze Turbelle Stream Pumps for the Reefer who wants high random currents in there tank.

 

[Scooterman]

I have a Tunze, It is nice to have an isolated pump inside the main display. I can shut-down the sump and still have great flow inside!

 

[Scooterman]

How do I post a Pic?

 

[mojoreef]

Scoot if you have a pic loaded on the internet just copy the url then come to the reply section, and click Img> then paste the url>then click the Img button once more.

Mike

 

[Doug1]

Are we ever going to be able to attach pics from HD if they arent on a website or something?

 

[MtnDewMan]

Like I have said in previous posts Doug, there is a mod I can make but it is large and easy to make errors on. I will need the time to do it right. Or I can wait for the next release which will have the functionality. One way or another it will eventually be available on the site.

Patience, just as in reefkeeping, is a virtue

 

[tankgirl]

On those eductors, the vendor site said;
Water enters the Eductor through the nozzle creating water pressure that in turn develops a vacuum, drawing additional water into its body for increased circulation.
If I'm reading that right, it sounds like it's pulling in additional tank water to expell along with the pumped water. Is that right?
Also, If i put one on my main return, which is always underwater except when if shut down the pump to do a water change. Then, when I turn the pump back on, it's in air for a couple of minutes till the water level rises high enough to cover it again. In that case, would the eductor suck air? Or what?
Thanks!!!

 

[mojoreef]

Yep TG thats the way it works. for every 1 part of water pushed through it, it pulls 5 parts in from the sides.
On your question yes it will suck air until it is once more submerged. A eductor works really well as a super beckett for skimers to.


Mike

 

[esmith]

Mike, are you saying that these eductors would work well on the return from your skimmer?
I don't really understand, what is a super beckett.

Thanks,

Eliyah

 

[tankgirl]

Thanks, Mike! What a wonderful gizmo!

 

[Scooterman]

Mike, on those eductors, doesn't it take one heck of a pump to make it work effectively? From what I've read you need a pump capable of about 21' of head pressure on a 3/8" eductor. I called a supplier and that is what I got from them, I was planning on using a 900GPH pump but it maxes out at 11 feet. Link me to a DIY, method, for PVC, I kinda think I can make one to try out but rather see some plans.

 

[mojoreef]

nope scooter the 3/8th eductor only needs around 500gph and between 10-50 psi,
here is your link

http://www.thereeftank.com/forums/showthread.php?s=&threadid=23330&highlight=eductor