reducing the current from Return pump

[pweesng]

Hi Guys,

Need some help.

My tank is an approximately 300 litres tank (Main and sump). Currently the return pump is an Ehiem 1262 which should be aroudn 3000 litres / hour before headloss.

the flow returning to the main tank is too strong. The difference between a wave maker and the return pipe is that the return pipe is a lot more concerntrated and forceful.

This resulted to current at the front of the tank being too strong (IMHO). The fishes are struggling to keep themselves at the same spot. I am curious why they are not hiding in the caves and shelter created by the live rocks.

But if i want to reduce the current but not slow down the turnover rate for the return pump. Is there a "return pipe" diffuser that i can use, so that the current from the return pipe is more uniform or more diffused?

Thanks for any advise thatis forecoming.

Pweesng

[onizukaa]

what i can suggest is to put a T joint on your return to "seperate the output into 2" therefore reducing it by half

[thomas_lim]

Bro onizuka suggestion is good. Coz it may cost u more harm than good by restricting the flow of the pump. It mean more back pressure on your pump and may lead to a hotter pump and shorter lifespan.

[onizukaa]

Bro onizuka suggestion is good. Coz it may cost u more harm than good by restricting the flow of the pump. It mean more back pressure on your pump and may lead to a hotter pump and shorter lifespan.

yea bro. restriction is not good for pump.

if no T joint, can use y joint

[digibee]

Hi, mine is eheim 1260 pump for my 2 ft cube tank.

The return flow is just nice and gentle.

Yes, I have a T joint that split the return into two sides.

[FuEl]

Why not just change the pump to a 1260? I got a 1260 which I don't mind swapping.

[Solo77]

Face your return to one side of the glass, use rocks to diffuse the flow or drill holes at the return..help to reduce the flow and also act as a safety feature to prevent back flow.

Take it as reference and need confirmation from more snr reefers.

Hi, mine is eheim 1260 pump for my 2 ft cube tank.

The return flow is just nice and gentle.

Yes, I have a T joint that split the return into two sides.

[tian1974]

i am using eheim1262 and drill a hole by the side of the return, and though can see the flow is strong, but my fishes can swim from left to right and hide. even my small nemo can swinging around. maybe i should consider a y-joint and see how

[pweesng]

Thanks to all,

I shall go grab a T or Y joint. I assumed it can be found in C328?

I am reluntant to change the pump because at this point of time, i gather the turnover for the tank is probably about 9 to 10 times per hour. If i change the pump to help the current, i might inadvertedly create another one next time.

Thanks again....

[TayHongSiang]

Thanks to all,

I shall go grab a T or Y joint. I assumed it can be found in C328?

I am reluntant to change the pump because at this point of time, i gather the turnover for the tank is probably about 9 to 10 times per hour. If i change the pump to help the current, i might inadvertedly create another one next time.

Thanks again....

if you are going to C328, must well drop by henry's place for help...he shd have some T / Y joint.

[pweesng]

ha ha.. actually true... since i got the tank from him, might as well seek his advice on this also...

good idea... thanks!

[LaW]

ha ha.. actually true... since i got the tank from him, might as well seek his advice on this also...

good idea... thanks!

can consider fitting a SCWD with T-joint. that will be sweet.

[pweesng]

can consider fitting a SCWD with T-joint. that will be sweet.

Thanks LaW,

Actually i was looking at it, but i am not sure how it works, and from what i read, there wil definitely be some restriction in the flow...

have you used one before? can review?

Pweesng

[comycus]

Thanks LaW,

Actually i was looking at it, but i am not sure how it works, and from what i read, there wil definitely be some restriction in the flow...

have you used one before? can review?

Pweesng

He posted a couple of videos on it's build and operation in his tank thread, can check it out bro

[pweesng]

He posted a couple of videos on it's build and operation in his tank thread, can check it out bro

hee hee... thanks... will have to check it when i get home... office blocks all streaming videos...

[teebs]

hee hee... thanks... will have to check it when i get home... office blocks all streaming videos...

Basically what a SCWD does is that is alternates the flow between the two pipes that it is connected to. How fast it alternates depends on the incoming flow. It actually works like a wavemaker providing alternating linear flows to your aquarium.

[pweesng]

Basically what a SCWD does is that is alternates the flow between the two pipes that it is connected to. How fast it alternates depends on the incoming flow. It actually works like a wavemaker providing alternating linear flows to your aquarium.

Thanks!

Can recommend a good one that i can look at? for a 3 feet only tank...

Thanks in advance Peter,

[teebs]

Thanks!

Can recommend a good one that i can look at? for a 3 feet only tank...

Thanks in advance Peter,

Only Reef Depot has this product. You can go there to take a look.

[pweesng]

Only Reef Depot has this product. You can go there to take a look.

Hi Peter,

Thanks for the advice.

I was at ReefDepot over lunch. The SCWD idea, although woudl have been a perfect solution, it won't work.

The SCWD is supposed to be sitting on the floor of the tank, directly connected from the Return pipe. unfortunately my return pipe is all the way up at the top of the tank.

Coupled with that, the device is also too heavy to be hanging in the middle of the tank. Will have to resort to other methods, such as a T or Y split.

[teebs]

Hi Peter,

Thanks for the advice.

I was at ReefDepot over lunch. The SCWD idea, although woudl have been a perfect solution, it won't work.

The SCWD is supposed to be sitting on the floor of the tank, directly connected from the Return pipe. unfortunately my return pipe is all the way up at the top of the tank.

Coupled with that, the device is also too heavy to be hanging in the middle of the tank. Will have to resort to other methods, such as a T or Y split.

I'm actually using my SCWD at the top of my tank as my return pipe is at the top of my tank also. No issues at all.

[pweesng]

I'm actually using my SCWD at the top of my tank as my return pipe is at the top of my tank also. No issues at all.

thanks Peter, Do you mind taking a picture for me to have a look?

I will be really interested in the SCWD if i can have it fitted into my return pipe...

thanks in advance

[teebs]

Hope you can see it.

[pweesng]

ha ha.. this is funny...

Now i realised i got it all wrong!

I thot the whole black plastic thing is supposed to be submerged in the water!

thanks for your picture! it spoke a thousand words to me!

[teebs]

ha ha.. this is funny...

Now i realised i got it all wrong!

I thot the whole black plastic thing is supposed to be submerged in the water!

thanks for your picture! it spoke a thousand words to me!

Not necessary to be submerged in the water...

[pweesng]

Thanks Peter,

potentially this can solve many many problems i have with regards to wavemaker...

i am trying to see how this can work out for me...

sigh... so many problem.. and the freaking lights is still not here! hahahah