Need help on overflow noises

[junyong84]

Hey guys,

I need help.

Currently, the water flowing through the teeth of the overflow box into the overflow box is very noisy.

Install duoso pipes, but still no use. I guess, duoso pipes are meant for reducing the noise when water is being drained/sucked into the sump.

The noise i am currently facing, is the noise when the water hits the waterlevel of the overflow box.

How can i solve it?

By the way, for the duoso pipes, what does the little hole on top side of the pipe do? Do i close it, or open it?

Thanks!

[patrick123]

Bro,

To reduce the waterfall effect, try to raise the durso pipe higher so that the water level between the tank and the overflow partition is minimum.

For the little hole, you need to leave it open. This is to prevent the siphoning effect of a durso without the hole.

[djviper]

ah i am facing the same problem too it sounds like waterfall everytime i on all my powerhead

[junyong84]

Bro,

To reduce the waterfall effect, try to raise the durso pipe higher so that the water level between the tank and the overflow partition is minimum.

For the little hole, you need to leave it open. This is to prevent the siphoning effect of a durso without the hole.

raise the durso pipe higher? i think mine is the max... i don't really want to buy any more pipes... any other ways?

lyk putting bio balls...etc...

[diabolus]

raise the water level in the overflow to about 2 to 3 iches of the level of the tank, this way, the sound would be greatly reduce.

[tineng]

put some bioball in the overflow up to the level of the edge....but remember to clean bioball regulary....

[junyong84]

raise the water level in the overflow to about 2 to 3 iches of the level of the tank, this way, the sound would be greatly reduce.

how do you raise the water level in the overflow box? the more i tried to increase the water level, the greater is the sound...

[Nickel]

Don't think putting anything into the overflow chamber will work as the water level inside the chamber is 'fixed' by the inlet of the durso pipe. Putting things only occupy the volume of space but will not push up the water level as the durso pipe inlet will suck it off anyway and the diference in water level between top of chamber overflow and water level inside chamber remain same.

One way is to cut shorter the inlet to raise the water line into the inlet. Other than that, I don't think there is any other practical way other than raising the durso.

[diabolus]

how do you raise the water level in the overflow box? the more i tried to increase the water level, the greater is the sound...

If your problem is the same as mine, its caused by the water flowing from the main tank into the overflow rite?sounds like a waterfall.

wat i did was to increase the water level in the overflow till its about 2" below the water level of the main tank, i do this by adding in water and adjusting the ball valve controlling the amt of water flowing back into the sump.

This is by far the most hassle free method of reducing the sound level caused by the waterfall.

*thanks to bro weileong who pointed this out to me when he came over to my place.

[junyong84]

well, i had all the valves pre installed in my tank already

currently, i using md 55 as my return, with tee offs here and there.

When i increase the flowrate of the md 55, the water level raises, causing alot of noises in the overflow box.

To reduce the noise, i tried to reduce the speed inlet hoses flow to the sump. Whenever i do that, there is not enough flow for the md 55, causing the md 55 to shoot out bubbles.

caught in a bad situation.

[diabolus]

wat i do is to keep the current tuning and just pour additional water into the overflow.

just need to tune the vavle abit.

[Rocky99]

http://www.dursostandpipes.com/

for my durso, height of water column is adjustable by screwing or unscrewing the top endcap of the durso - the kind of endcap that has threads......

with this, raise the water level to minimize the fall..

hope it's useful

[junyong84]

http://www.dursostandpipes.com/

for my durso, height of water column is adjustable by screwing or unscrewing the top endcap of the durso - the kind of endcap that has threads......

with this, raise the water level to minimize the fall..

hope it's useful

where do u make ur durso pipes?

[diabolus]

Its a very simple DIY project.

[jOsHiE]

hmm just wondering how long before we got to clean the bio balls in the overflow... shouldnt the bio balls be use to store batteria... now wash it wont the bateria be gone???

[junyong84]

hmm just wondering how long before we got to clean the bio balls in the overflow... shouldnt the bio balls be use to store batteria... now wash it wont the bateria be gone???

wrong thread la bro..

[jOsHiE]

put some bioball in the overflow up to the level of the edge....but remember to clean bioball regulary....

sorry sorry just wanted to add on to his point.... yep!!!