Adapter for Eheim canister filter to quiet the outflow?

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InJuxHurYlem

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Apr 6, 2011
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I got the Eheim Ecco Pro canister filter hooked up and running great. It's super quiet, but the flow is so strong I can't configure the outflow tube in any way that doesn't create a splashing sound...even with the tube opening aimed sideways right at the water surface level.

Do they make a baffle for this or maybe a bar that would distribute the force of the flow? I want the aquarium to be silent. Thanks.
 
Eheim does make spray bars, I might have an extra laying around that I'm not using, ill let ya know in a min.
For the time being you could always just raise the water level.
 
Slightly turn output shutoff valve to decrease filter output

Ecco filters have shutoff valves on both input and output hose connections. You should never run the filter with decreased input flow but you can easily adjust the outflow using the shutoff lever.

By decreasing the output flow you will lessen the noise and splash but at the cost of reduced water turnover.
 
Thanks man. I read the manual specifically to check for information on using the valves to decrease the flow and couldn't find anything. I'll check again.

My tank is only 20g, so this filter is plenty overpowered, so a little reduction in flow shouldn't be an issue. A spray bar isn't bad, but the Fluval G3 I was using before had a baffle like a slide and the water going into the tank was very quiet.

My understanding is that surface agitation is what aids in oxygen exchange. Does that mean strictly the surface of the water being broken with the inflow or could the stirring of the water sufficient? I could keep the tube submerged just under the surface and it would create some nice water turbulence while also creating a nice current to sweep through the plants and give the fish something to play in.
 
I'd say get a spray bar (or make your own -- some PVC, a few holes, an end cap, you're in business) and set it up so it's under the water line but the holes pointing up toward the surface. You'll get some agitation but much less noise.
 
InJuxHurYlem said:
Thanks man. I read the manual specifically to check for information on using the valves to decrease the flow and couldn't find anything. I'll check again.

My tank is only 20g, so this filter is plenty overpowered, so a little reduction in flow shouldn't be an issue. A spray bar isn't bad, but the Fluval G3 I was using before had a baffle like a slide and the water going into the tank was very quiet.

My understanding is that surface agitation is what aids in oxygen exchange. Does that mean strictly the surface of the water being broken with the inflow or could the stirring of the water sufficient? I could keep the tube submerged just under the surface and it would create some nice water turbulence while also creating a nice current to sweep through the plants and give the fish something to play in.
Click to expand...

That's what I do.
 
I have it setup right now about an inch underwater slightly tilted upwards toward the middle of the aquarium. Creates a nice, silent rolling action on the surface that should be as good or better than a waterfall.

But something about it is bothering me and it didn't occur to me until last night. Pumping into air is one thing. Are these pumps built to handle the strain of pumping into water? It would obviously create resistance and I'm a little concerned that I might be damaging the pump. I'm assuming it's a pump and not an impeller driving this filter, but I could be wrong, either way, it's the same premise. Anybody know if these are intended to have the outflow underwater?
 
Eheim canisters can all have their output flows way reduced without hurting the canister just DO NOT limit the input flow. The output flow reduces gradually over time anyways as the filter media inside get dirty.

I also run my spraybars farther down in the tank pointing upwards so that they do not interfere with the fish getting their food on the ends of the tanks. When you run a spraybar near the surface sometimes food just floats in and sets behind the spraybar.

I have a number of Eheim Ecco canisters which I use with just Seachem De-Nitrate inside which require slow water throughput. I have their output severely limited so just a trickle of water comes out and they have been running for years with no issues.
 
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