Becoming disappointed with 2028 flowrate - The Planted Tank Forum
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post #1 of 18 (permalink) Old 11-18-2012, 05:43 PM Thread Starter
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Becoming disappointed with 2028 flowrate

I gave an Eheim 2028 on my 60p. Has a Hydor inline heater and a Sera Flore 500 CO2 reactor on the output side and 17mm lily pipes. I have been cleaning out my filter monthly and have changed out to coarser filter media and less of it trying to improve flow with really no improvement.

Anyone have some thoughts on how to increase my flowrate? I've considered getting a Koralia Nano 240 but am unsure where to place it, plus I pride myself on the aesthetic of not having any cables coming out of the tank. I've also considered buying a bigger canister but obviously I was a poor judge when I thought my 2028 would be more than enough flow.

Any other thoughts? I think my CO2 dispersion is suffering as I continue to slowly increase CO2 past yellow drop checker status but still fight BBA, so beginning to blame lack of flow.
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post #2 of 18 (permalink) Old 11-18-2012, 06:08 PM
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I placed an adjustable flow inline pump after the output on my 2028. The adjustable flow allows me to tune it.

Last edited by clang; 11-18-2012 at 07:35 PM. Reason: fixed spelling error
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post #3 of 18 (permalink) Old 11-18-2012, 11:49 PM Thread Starter
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post #4 of 18 (permalink) Old 11-19-2012, 12:54 AM
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Media compartment type filters annoy me...tis one of the reasons I got rid of my old Marineland canister. Lots of places for flow to be lost. Have you tried cleaning the impeller and impeller chamber well and lubricating the impeller shaft?
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post #5 of 18 (permalink) Old 11-19-2012, 01:21 AM Thread Starter
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Quote:
Originally Posted by freph View Post
Media compartment type filters annoy me...tis one of the reasons I got rid of my old Marineland canister. Lots of places for flow to be lost. Have you tried cleaning the impeller and impeller chamber well and lubricating the impeller shaft?
I thoroughly cleaned the impeller last time. I will try and lube it this month after I clean again.
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post #6 of 18 (permalink) Old 11-19-2012, 01:49 AM
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are you running any polishing filter, as they will reduce your flow in very short time and need to be replace quite often, at least this is what I need to do on my Rena

Good luck
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post #7 of 18 (permalink) Old 11-19-2012, 01:56 AM
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Lilly pipes will also make it seem like there is less flow, some are just designed that way


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post #8 of 18 (permalink) Old 11-19-2012, 02:37 AM Thread Starter
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Originally Posted by Rob in (ca) View Post
are you running any polishing filter, as they will reduce your flow in very short time and need to be replace quite often, at least this is what I need to do on my Rena

Good luck
I removed all the eheim filters from between the canister stages. Have a small, 1/4 tray piece of nylon polyfill for smaller stuff but everything else is coarse/bio.
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post #9 of 18 (permalink) Old 11-19-2012, 04:24 AM
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Quote:
Originally Posted by TexasCichlid View Post
What sort of pump did you run?
Eheim has the Compact+ line of pumps that are adjustable. The 2000 model has a flow rate of 264 to 528 gph.

http://www.marinedepot.com/Eheim_Com...i.html#Manuals

http://www.eheim.com/en_GB/products/...s/compact_plus
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post #10 of 18 (permalink) Old 11-19-2012, 12:08 PM
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I noticed a few reviews reporting reduced flow when using the Sera 500 reactor, due to its design.
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post #11 of 18 (permalink) Old 11-19-2012, 02:30 PM
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I am using a 2026 pretty loaded up with media on my 60-P with in-line Hydor heater and UpAqua atomizer.

When the filter is clean and I use the open-ended outflow, I have to throttle back the filter to ~ 1/3, otherwise, plants start to uproot. When I switch to 13mm Lilly pipes I have to crank the filter back to max to get any kind of surface movement.

Given that, I'd switch to a different outflow to check if that makes a substantial difference.

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post #12 of 18 (permalink) Old 11-19-2012, 02:37 PM Thread Starter
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I have two different types of outflow eBay lily pipes. This is the stronger jet of the two. This is using 17mm pipes. Perhaps I should try a jet pipe outlet?
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post #13 of 18 (permalink) Old 11-19-2012, 02:48 PM
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I'd try the green outflow pipe that came with the filter without the spray bar



or this one



w/e you have available, just as a test.
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post #14 of 18 (permalink) Old 11-19-2012, 02:57 PM Thread Starter
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Bought the filter used without the stock tubing bits.
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post #15 of 18 (permalink) Old 11-19-2012, 10:30 PM Thread Starter
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Here is a video I just took trying to show how much flow I have. Cleaned out the filter, removed what nylon filter floss I had in it. Cleaned impeller and internal tubing. Lubricated impeller shaft. Does it seem abnormally low? Yes, I have many microbubbles...reactor can't keep up with my CO2.

http://youtu.be/Tknjs_lpAlU
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