Flow Rate Eheim 2262 after 1 year w/o opening canister

[12 Volt Man]

yes, on a light bioload tank you can go quite a while without having to service, esp. with a monster canister like a 2262.

 

[tcarswell]

Howdy,


Do you clean so often because of drop in flow rate, or simply routine?


^ what jgray said.
Plus: We do not have day zero data. There is a minimal drop between the two data points we have, which is 4 months and one year.
I'd love to have day zero data ... but that involves cleaning the filter


Sure. Do you know of any other data where we can compare 1-year service intervals? Please share.

HarleyK

Routine , I gotta keep my tanks pretty clean because my tap water has 20-30 ppm nitrates. So I gotta remove as much waste as possible. I could probably get away with cleaning them less however.

 

[HarleyK]

Howdy,

smaller filters will not be able to go as long but that is normal. they hold far less media and are not nearly as powerful.

You may be surprised that my 2211 has similar service intervals (I'll clean it again on Thanksgiving, that's 10 months). I cleaned my 2080 after 10 months as well, not because of reduced flow, but because it drew air (not my favorite filter anyways). The 2217 lasted only 8 months, then I had to exchange the filter floss - but I didn't touch the main mech nor biomedia.

You're absolutely right that more media serves as pre-filter before crap can clog up filter floss on the top, I completely agree. But all in all, my Eheims do not differ too much across the board when you look at

1) alleged gph/canister volume

• 2211=60gph/1L=60
• 2217=265gph/6L=44
• 2080=450gph/13.5L=33
• 2262=900gph/18L=50

--> all in the same ballpark

2) alleged gph/area of canister footprint

• 2211=60gph/58sq''=1.0
• 2217=265gph/154sq''=1.7
• 2080=450gph/160sq''=2.7
• 2262=900gph/452sq''=2.0

--> The 2262 is average, even if you enter lower flow rates

but if your running the filter on a tank that has no inhabitants, then there is going to be little to no dropoff.

This is /\/\onsterfishkeepers ... do you know anyone here with an empty tank???

Routine , I gotta keep my tanks pretty clean because my tap water has 20-30 ppm nitrates. So I gotta remove as much waste as possible.

Gotcha


All right,
I should probably put my initial statement in perspective:

In conclusion, this proves that flow rate only drops minimally in a high powered Eheim.

Compared to other filters with similar flow rate pumps but lower wattage.

All right, I put on my flame suit

HarleyK

 

[Jgray152]

All right, I put on my flame suit

haha.

1) alleged gph/canister volume

• 2211=60gph/1L=60
• 2217=265gph/6L=44
• 2080=450gph/13.5L=33
• 2262=900gph/18L=50

--> all in the same ballpark

2) alleged gph/area of canister footprint

• 2211=60gph/58sq''=1.0
• 2217=265gph/154sq''=1.7
• 2080=450gph/160sq''=2.7
• 2262=900gph/452sq''=2.0

Good comparison. 12volt, gata understand which I am sure you do, maybe you worded your post wrong but the cross sectional surface area is the most important when wanting a filter to go for a long time without clogging excessively.

 

[Toby_H]

As suggested, the application of the filter will mean a lot...

If the filter is used to collect physical waste, then it's going to clog up faster... if the intakes are placed in a way that they collect minimal physical waste, they will go much longer between cleanings with minimal flow loss...


I was not aware that Eheim filters use higher wattage pumps. This also means they cost more to run...


Since the connection between the motor and the impeller can only be as strong as the magnetic connection between them... This makes me interested in this connection. Can someone please post comparison pictures of an Eheim impeller next to a similar sized name brand filter's impeller?


While I think this thread offers a valuable experience, I'm not sure I clearly see any conclusive information as we do not have anything under the exact conditions to compare it to...


Thanks for making the thread Harley, adn I look forward to watch it develop... interesting stuff

 

[Jgray152]

I think your question should also involve the design of the impeller. The Eheim 2262 pump uses more wattage than the Fx5 pump but yet the Fx5 pump flows the a little more than the 2262 pump. Eheim 2262 Pump 80 watts verse Fx5 Pump 53 Watts.

The Eheim 2262 uses a straight bladed impeller verse the enclosed type impeller in the fx5 pump.

Now, would the high wattage pump in the 2262 mean that it can create more negative pressure during clogging than the fx5 pump?

 

[HarleyK]

Howdy,

Eheim 2262 Pump 80 watts verse Fx5 Pump 53 Watts. The Eheim 2262 uses a straight bladed impeller verse the enclosed type impeller in the fx5 pump.

We'll never find this out, but it'd be interesting to know how the FX motor would compare if hooked up to a 2262 canister No difference? Or like a race horse pulling the Budweiser wagon? LOL

HarleyK

 

[tcarswell]

In general Eheims get great energy efficiency. My 2215 runs off of 15 watts. Different league of filters I know but I seem to notice a trend of energy efficiency with the Eheims

 

[Jgray152]

HarleyK, Have you cracked open your canisters yet! lol. Think you can give a test with a clean filter?

 

[zebvance]

+1