Eheim Classic Canisters

Forum for the Review of Aquarium Related Products

How would you rate this product?

This product sucks
0
No votes
This product has its use, but there are better
0
No votes
If you can get it cheap, it's worth it
1
6%
This is a good product
1
6%
I highly recommend this product
14
88%
 
Total votes : 16

Eheim Classic Canisters

Postby Kmuda » Sun Sep 05, 2010 1:45 pm

The site review for Eheim Classic Canisters can be found here:

http://www.oscarfish.com/canister-filte ... assic.html

Please reply to this thread with your own review of Eheim Classic Cannisters, to include the 2260, 2250, 2217, 2215, and 2213.
100g- Red Oscar Fish, Male Convict, 3 SDs - 20 gallon sump
55g - 21 Year Old Kissing Gourami + friends
55g - Angelfish - 29g Livebearer Community
4 Cats, 2 Shelties, 1 wife, 1 old lady, and one of the sub-adults broke back in.
User avatar
Kmuda
Mad Scientist
Mad Scientist
 
Posts: 16556
Joined: Sat Mar 18, 2006 8:13 pm
Location: Fort Smith, Arkansas

Re: Eheim Classic Canisters

Postby aus-car » Mon Nov 01, 2010 11:40 am

I have the 2217 classic. It does what it says on the box (very well) it's a quality 'no frills' canister filter, just tried and tested reliability. The plastics and overall fit and finish are of high quality and it has a handy backwash feature. As the pre filter is at the bottom, it allows you to drian the canister from the bottom to wash out all the debris which collects under the sponge. I don't miss the lack of priming button as I always use a little bit of common sense when servicing my filters.

The bio media the classic filters ship with is of a high standard, Substrat pro has to be my favourite.
User avatar
aus-car
Astronotus ocellatus
 
Posts: 1037
Joined: Sat Sep 20, 2008 1:02 am
Location: Perth, Western Australia

Re: Eheim Classic Canisters

Postby big gward » Sun Jan 16, 2011 1:20 am

this is a good product i will buy one ever chance i get.
big gward
Microgeophagus ramirezi
 
Posts: 1
Joined: Thu Jan 13, 2011 12:09 am

Re: Eheim Classic Canisters

Postby Ahab's Foot » Tue Apr 05, 2011 12:11 pm

I have two 2215s on a tank in my living room. The whirrr from my laptop fan is louder. I have to check the surface of the water to make sure they're running.

Regarding biological filtration: my 90 gallon tank has never tested positive for ammonia or nitrites. Mechanical filtration is what I do each week when I vacuum the gravel. :lol: I use Eheim's Prefilters to prevent detritus from getting into the canisters, though it's always amazing what sneaks through.

I've never used any other filter so I can't say how much easier/harder the maintenance is. I do know that for someone with little mechanical aptitude and almost no patience it's not bad. Read Kmuda's article and for heaven's sake use tankwater. Eheim's assembly instructions leave room for improvement. This link might help: http://www.rexgrigg.com/Eheim%20Classic%20Canister%20instructions.htm The page says you can go three months without cleaning your canister: only with Tiger Barbs. ;)
User avatar
Ahab's Foot
Advice Team
Advice Team
 
Posts: 694
Joined: Thu Aug 06, 2009 2:15 am

Re: Eheim Classic Canisters

Postby gordofox » Thu Jun 30, 2011 10:02 am

I have just set up a 2217 classic to my 900 L freshwater aquarium alongside a Rena XP3. The Eheim was a pleasure to install, not a problem to prime and is super quiet. All materials are high quality. My only setback was the elbow feeding the spraybar is slightly narrower than the bracing around the top of my tank so the spraybar wouldn't sit in the water. I overcame this obstacle by running 1ft of hose from the elbow into a right angle I purchased separately which directs water downward below the surface. I secured this extra hose with the suction caps provided for the spray bar. I don't think any less of Eheim because of this and when my XP3 packs up I'll be buying another 2217 for sure.
1 x Adult Tiger Oscar female
1 x Adult Rainbow female
1 x Adult Convict male
gordofox
Microgeophagus ramirezi
 
Posts: 88
Joined: Thu Jan 17, 2008 3:20 am

Re: Eheim Classic Canisters

Postby Ahab's Foot » Mon Nov 07, 2011 1:01 pm

This aquarist conducted an experiment on the flow rates of the 2217 & 2215 and the 2215 with an impeller from a 2217.

Dispelling a myth.

Compelled by the many contradictions on flow rates and overall lack of information available, I purchased a new Eheim 2215 and a 2217 for testing purposes. My primary intention was to test for flow rates on new filters, with and without filter media, and to see if these filters would actually produce their advertised flow rates. I also conducted tests with and without the included spray bars. Upon close examination of the filters I noticed that the impeller assemblies were identical on both of the filters except for the 2217 having a 6 blade impeller, and the 2215 having 3 blades. I then decided to test the 2215 using the 2217 impeller to overdrive it and to consequently boost the flow rate. I likewise ran a test on the 2217 using the 2215 impeller to under drive it to reduce the flow rate. As I expected, I was able to boost the flow rate significantly on the 2215 using the 2217's impeller assembly, and predictably got a corresponding reduction of the flow rate on the 2217 using the 2215's impeller.

The tests were conducted with the filters sitting on the floor with a 50 inch water height to simulate actual conditions, and tests were also conducted with the filters elevated on a 30 inch platform after I failed to match the advertised flow rates. Results were obtained by using a stop watch to measure the seconds to pump 5 gallons, and then dividing the seconds by 3600 and multiplying this figure by 5. The numbers were rounded out to the nearest 1/2 gallon. Surprisingly, elevating the filters did not improve the performance as I expected, and there was no measurable gain. However, my biggest surprise was that the output on both of the filters was the SAME, with the included Eheim filter media, and with empty canisters.

Advertised flow rates are 164 gph for the 2215,and 264 gph 2217.

Results

{2215} --------------- with 2217 impeller


141.5 gph open tube --- 171.5 open tube

136 gph with spray bar ----- 152.5 with spray bar

------------------------------------------------------------------

{2217} -------------------- with 2215 impeller

229 gph open tube--------- 195.5 gph open tube

202 gph with spray bar --------- 171 gph with spray bar ________________

http://www.aquascapingworld.com/forum/equipment/526-eheim-2215-2217-facts-diy-performance-mods.html

So the 2215 does 141.5 gph open tube and 136 gph with a spray bar.
The 2217 does 229 gph open tube and 202 gph with a spray bar. This is, Escher-like, with or without media in the canister. :shock:

I'd be curious to see if there are any long term consequences of using the 2217 impeller in the 2215. I'm tempted. A 30 gph boost (open tube) is significant. Then again, if it ain't broke ...
User avatar
Ahab's Foot
Advice Team
Advice Team
 
Posts: 694
Joined: Thu Aug 06, 2009 2:15 am

Re: Eheim Classic Canisters

Postby Kmuda » Mon Nov 07, 2011 6:22 pm

The issue I have is that the Eheim Classics are engineered for a specific flow rate. The diameter of the hoses, the volume of the filter, the size of the motor, and the associated impeller in use, are all engineered to optimize the canister for biological filtration. There are various scientific principles at work.

So if you push more (or less) water than the filter is designed, there will be a resulting decline in efficiency. Increased flow rate is not always a good thing. When it comes to mechanical filtration, the higher the flow the better. But not so with Biological or chemical filtration.

Aside from that, my concern with using a 2217 impeller in a 2215 canister would be leak risk. The outbound hoses on the 2215 are not designed for that extra 30gph. This will increase pressure in the canister, which could cause the lid to lift, possibly the motor head or quick disconnect seals to loose contain, or even pop the outbound hose off.
100g- Red Oscar Fish, Male Convict, 3 SDs - 20 gallon sump
55g - 21 Year Old Kissing Gourami + friends
55g - Angelfish - 29g Livebearer Community
4 Cats, 2 Shelties, 1 wife, 1 old lady, and one of the sub-adults broke back in.
User avatar
Kmuda
Mad Scientist
Mad Scientist
 
Posts: 16556
Joined: Sat Mar 18, 2006 8:13 pm
Location: Fort Smith, Arkansas


Return to Product Review Forum

Who is online

Users browsing this forum: No registered users and 1 guest