Silent canisters, REALLY?!

rbishop said:
My comment was just an observation jeff, and it struck me as funny. I have no issue with the thread.

I agree with you, buy them for how well they filter and do their assigned tasks.:cool:
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again, i don't mean anything personally toward you in any way shape or form. that's the only thing i hate about the net in that you really can't express emotions and the such. lol :dive2:
 
Philgo said:
My point is that a lot of people say their canister filters are silent, now silent means, no noise at all. Canister filters have an impeller which is turning and it's not possible to do this completely silently. If you live in a quite house and there is no other noise, TV etc you will hear that Bad Boy, unless you are a little hard of hearing. I'm only making this point because I don't like to misled people.
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I completely understand. But silent from one person to the next can be different. Like I mentioned, if you live in the city or have other noise (like say a TV) you might not hear your canister over the ambient noise. Therefore to that person it is silent unless they go stick there head right on it. But the same filter in a different setting might be loud enough to really annoy someone. So I guess the point is that you cant accurately say how quiet something is with any degree of accuracy unless you have a decibel meter at a given distance or something like that. And just because there is some kind of mechanical work going on doesnt mean it has to be loud, I mean I have heard a 20W filter make more noise than an idiling car engine that has 1,000 explosions of fuel per minute going on. It depends on how well designed something is to reduce the sound. I mean if you took the exhaust off even that tiny 4 cylinder car, its still going to be deafening.

Another example is my digicam. One of the cool things about its video taking capbility is its 'ultrasonic' motor for the zoom, its suppose to be so quite you cant hear it when you zoom and are recording video. You cant hear it in normal conditions. But when I am out in the quiet woods taking some nature video you can definatly here the zoom motor going in the video.
 
loaches r cool said:
And just because there is some kind of mechanical work going on doesnt mean it has to be loud
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Agreed, Eheim filters are probably as quiet as you can get, but as they hum slightly they are not silent. But the most important thing is they are in my opinion the best available, I just don't want a new owner to be unhappy if they hear the gentle hum that they make.
 
rbishop said:
My comment was just an observation jeff, and it struck me as funny. I have no issue with the thread.

I agree with you, buy them for how well they filter and do their assigned tasks.:cool:
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Yes, but there are some people that want a machine that filters well and perform their assigned tasks quietly
 
not really silent

i am running 4 eheim pros, 2026s and 2028s, and they all are not really silent. the most "quiet" one i could hear at 3ft, just a very subtle hum, which literally becomes pretty silent behind a cabinet. i'm not sure how some of you are keeping your units so mute that you have to feel to be sure it's running..?
 
I agree that noise is relative...

I have 3 eheim classics. in the cabinet, I cannot hear them.. I CAN hear my Fluval 404 2 rooms away! Imagine that. Are they silent? NO! If you open the door and listen, oyu can hear a little hum, and maybe some water movement, but even in a silent setting.. I live in the country.. and at night... I can't hear it.

My Fluval? I can't hear over ambient daytime noise.. tv, people talking, kids playing.. it's there, but you don't notice it(unless you try) but try to nap? Well.. it's not BAD, it rattles on occation(when it needs cleaned) but it's sort of a white noise.. like a fan... but you can tell it's water moving. It's not silent.. you know it's on... as i said, you can hear it over my eheims when I'm right in front of the eheims. Think about it, 3 eheims in the living room on 2 large tanks.. one Fluval 2 rooms away. You're right in front of the Eheim tanks.. and you hear the Fluval.

Still. I find the Fluval annoying for several reasons, so I plan on replacing it. I have puchased an XP3 to do this... I've heard mixed review on the noise from this unit, but It seems like a good deal, and I like the design. I'll let you know my experience. My friend has an eheim and an XP3, and he says that it's somewhere between the Fluval and the Eheim. Quiet is important to me... my friend doesn't care about the noise... if I don't like it, I'll exchange it for an eheim classic. Either way, I'll let you know the results.
 
OK, I just hooked up my XP3, and it's unfair to judge it until it has several days to run, but to answer the noise question?
My first impression? Louder than the Fluval.. which I find loud. The noise level... to ME.. is unacceptable.

I will give it a day or so, but if it doesn't quiet up, It's going back... It's quite obnoxious.. not the water flow sound of the fluval either.. it's obviously a pump..

I'm likely going to exchange it for an eheim 2217.. which, to my experience, is the best bargain in filters... quality, quiet...... pice.. the best...

Noise is a funny thing.. it's all relative.. If I can hear this filter over my loud computer with high speed fans? Well... lets let it wear in... Even eheim silent up after a couple days, but never anything like this.
 
I'm going to revise my last post. I fixed the obnoxious noise. Apparently, the Rena causes more vibration than an eheim(despite the rather impressive rybber feet of the Rena XP3). I placed it on a 1" thick piece of styrofoam, and now the noise is not obnoxious.. it's not even Fluval noisy. It's no eheim either, but it's acceptable, and once it wears in, I'm thinking I'll keep it on this tank, and move the eheim 2213 as a backup filter on my 60g community.

So to those that say silent? Well, there is no such thing, but I can't hear my eheims with the doors on the cabinet in a completely quiet room. I can hear the Rena over if I listen for it.... over the computer, but I would not be able to hear it from another room. I can't hear the eheim with the computer off in teh same room. I can hear fluval 2 rooms away when it's quiet.
I hope that the Rena will quiet up in a week or so like my Aquaclear 50's on my smaller tanks.
 
At least we are all agreed that the quietest filter in the world is Eheim, followed by Rena then Fluval.

It would be nice if other makes are put in the list in the correct position.
 
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