wave maker in the overflow chamber?

[hazic]

I have a Tunze powerhead with a single controller and i thought to place it in the overflow chamber so it will get the water from there and will return the water to the tank . what do you say?
my over flow is covering the pipe of the water going out of the tank through the hole in the bottom.

 

[hazic]

 

[mrbigshot]

i doubt it will do anything. the overflow will block most of the flow from the powerhead from getting back to the tank.

 

[hazic]

i mean that it will take the water from the over flow and the output of the pump will enter the tank with a hose that will be above the overflow. the whole purpose of this is that the pump will be hidden

 

[hazic]

 

[hazic]

the overflow chamber is full with water that going down to the sump and the the pump is in the bottom of the chamber taking some of the water back to the tank.
what do you think? the only problem i can think of is that maybe the pump will retun water with micro bubbles.

 

[jmjohnson]

I have thought of the very same idea, here is WHY IT WILL NOT WORK. The area in the overflow box is always are a certain height due to the durso. However, if you use a tunze, the water level in the area will fall below the top of the durso pipe, breaking the water flow. You will constantly be alternating between no overflow and overflow down to the sump and continually restarting the siphon. This is different than having a constant water level in the overflow where the water level is always the same height. If I were you, I would build a box that matches the overflow dimensions and put it on one side of the actual overflow and you will have the same 'hidden" effect.

 

[hazic]

<a href=showthread.php?s=&postid=15046294#post15046294 target=_blank>Originally posted</a> by jmjohnson
I have thought of the very same idea, here is WHY IT WILL NOT WORK. The area in the overflow box is always are a certain height due to the durso. However, if you use a tunze, the water level in the area will fall below the top of the durso pipe, breaking the water flow. You will constantly be alternating between no overflow and overflow down to the sump and continually restarting the siphon. This is different than having a constant water level in the overflow where the water level is always the same height. If I were you, I would build a box that matches the overflow dimensions and put it on one side of the actual overflow and you will have the same 'hidden" effect.

I'm not sure that you are right... you say that thae tunze pulses will change the water level in the overflow but i don't think it wcan happen because it's like some kind of a close loop, if the tunze pulse take a big quantity of water from the overflow chamber , the same quantity of water is immediately moving to the tank and immediately going back to the overflow. so the water level remain stable.

 

[surebet]

so, what the point to put the Tunze in the overflow?

 

[hazic]

<a href=showthread.php?s=&postid=15050173#post15050173 target=_blank>Originally posted</a> by surebet
so, what the point to put the Tunze in the overflow?

to hide it.

 

[mille239]

Should be no problem SO LONG as your overflow can handle the volume of your return pump and the Tunze at the same time, but I agree, unless you place the Tunze at the very bottom, there is a good chance you will be getting microbubbles back in your display tank from the Tunze.

One last thing to ponder, the overflow is gathering all the nasty stuff from the surface, to be sent to the sump/skimmer. You will just basically be taking a large portion of this and returning it directly into your display tank.

 

[nikon187]

you will be putting back all the surface films and such that your overflow box just skimmed off the top as mentioned above