stream-mod on closed loop??

[akhanf]

I was glancing at the maxi-stream mod, and I was wondering if it was possible to rig a similar propeller to the inside of a bulkhead entering a tank (or something similar).. This way you wouldn't have a powerhead in the display, just a large closed loop pump. Is this possible? If so has anyone tried this? I'm not too sure about the mechanics of how the stream is produced, but if it's just the propeller, then one would think this is possible right?

Thoughts?

 

[areze]

attach the pump to the bulkhead somehow. insert the propellor magnet assembly into it, add the pipe housing to the inside of the bulkhead. and your done. youd have to have the propellor and pipe housing in the tank for it to draw in water from; but pump would be hanging on the ouside.

sounds a bit prone to leaks for my liking.

 

[douggiestyle]

like your idea sort of a low pressure eductor may work very well.

worth testing.

 

[areze]

youd need a real small bulkhead, then go down with some couplings till you can thread into the inlet of the pump.

but bigger the pump the more weight your hanging.

wouldnt work for a MJ because there is no good way to attach the pipe. even if you glued it you are just asking for disaster.

though IMO your kind of asking for disaster this way too... one of the benefits to a powerhead is that there are no holes to potentially leak.

 

[toastman]

You could make a small box that was hooked to the tank where the bulkhead is, insert the power head return into the bulkhead, make sure the bulkhead is bigger than the return on the powerhead, and then you wouldnt see the powerhead, it would be in the small fuge/box outside of the tank

 

[dhnguyen]

IMO I think using an eductor would be safest and best solution for this problem.

How much and how strong your flow is after that will depend on your pump but using an eductor will get you simlar flow as a maxi-stream mod.


D.

 

[douggiestyle]

akhanf are you planning on a closed loop system?

or a way to mount a power head through the glass.

 

[ejmeier]

I'm planning on using a CL w/ eductors too.

How would you ever be able to service this pump if it is mounted to the tank? How would you stop water from spililng out the bottom (or side) of your tank when/if you needed to replace the 'maxi-stream' pump? It is not really practical to put a ball valve in the middle of this mod.

 

[areze]

yet another valid point.

for the sake of arguement, remove the pipe housing from the inside and cap it from the inside.

but this is really just another reason why it isnt feasable.

as for assembling a box outside the tank, I think eventually one just has to say "why?". I mean, why not just do this or that or that. because its outside the reasonable spectrum of modifications.

 

[akhanf]

Yeah an eductor is a much better idea..

I'm seriously considering upgrading to a 130gal (5 ft long) so for flow I'm either gonna go with CL w/eductors, or a tunze stream. While on the subject, which one would you recommend (going to be mostly sps with lps & softies & bottom)?

So far I think a tunze w/controller setup looks very attractive:
-it can pause for feedings
-wavemaking, night mode
-no plumbing as with a closed loop

any advice?

 

[dhnguyen]

akhanf -- You're not making any sense here

First you say you wanted a closed loop and basically wanted to hide the Maxi-stream mod. Then you say you're considering using a Tunze. What would be the difference in mounting a Tunze versus a maxi-stream mod? The Tunze is by far much larger and harder to hide


D.

 

[ste6168]

i dont think the question was really a way to "hide the maxi stream mod" but the question was rather has anyone just used a propeller that is driven by water inside the bulkhead? am i right?, anyway i do not think you read the maxi stream mod thread thoroughly, it is spun by a magnet inside the pump, not the water itself.

 

[akhanf]

Right, I thought the propeller was driven by the water (which is not true as you stated).. Sorry for the confusion!