Need Some Help: Eheim 2213 Hose
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Old 01-21-2004, 11:49 PM   #1
AJ_Wave
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My Eheim Classic 2213 has 12mm/16mm hose (this is what came with it).

Well today I got my Hydor In Line Heater and my Custom Sealife UV. Unfortunately both of these devices will not work with the 12mm/16mm hose (it's to small!).

Anyone know where I can find (locally would be awesome) an adaptor to take the 12mm/16mm hose into 5/8" hose so I can get the heater and UV plumbed in line?

Thank you very much!
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Old 01-22-2004, 01:34 AM   #2
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When you increase the diameter of the tubing, you are going to decrease the flow from the filter, bear that in mind. Here is a link for a reducer:

https://www.drsfostersmith.com/produ...6&siteid=6

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Old 01-22-2004, 01:43 AM   #3
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You won't decrease the flow but you will decrease the pressure. At least not in the small increase in diameter we are talking about.

Example: Take a pump that has a output of 300 gph and a standard garden hose fitting. Hook a hose up with a 1/2" ID and you might get less than 300 gph due to the rise in pressure. Now take a hose with a 5/8" ID and you should get close to the 300 gph. Now take a monster 1" ID hose and you will get the 300 gph but with less pressure. But if you hook up a hose with a 3/8" ID you will get less than 300 gph but you will get it at a higher pressure.
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Old 01-22-2004, 01:49 AM   #4
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Ran to Home Depot just before they closed and grabbed a 5/8 to 1/2 inch plastic converter. Added some hose clamps just to be sure.

Don't ask why 5/8 to 1/2 worked but it fits nice and tight.

No flow problems (Thanks for the info Momotaro). I was worried about this but I can't see a real difference. There maybe a difference but I can't see it.

In the picture below you can see 1 of the 2 coversions I made. On the output side of the UV you can see the connection and hose clamps I used. All is well.
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Old 01-23-2004, 02:45 AM   #5
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Quote:
You won't decrease the flow but you will decrease the pressure. At least not in the small increase in diameter we are talking about.
Interesting. I am almost wondering now if I don't need a larger (more GPH) canister now. The 2213 moves 116 gph (though this could now be reduced because of the hose conversions, don't know for sure).

My UV will take from 100 gph to 200 gph (To be effective anyway).

1) Is 116gph (take a few possibly due to hose conversions) enough for my 30 gallon?

2) Does Eheim make a caniser that will use the larger hoses I require for the In Line Heater/UV (so I don't have to convert)? If so, which ones?

Thanks!
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Old 01-23-2004, 09:14 PM   #6
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Dude, don't sweat it. Your setup is fine.
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Old 01-23-2004, 09:48 PM   #7
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Using a larger diameter hose than the original one has no negative effects whatsoever. It definitely will not reduce the flow.

One thing that I noticed in your picture (it might not be that way in reality) is that the flimsy looking green hoses seem to have kinks. I tried to highlight that in the pic. Especially on the inlet side, collapsing or kinked hoses would not be a good thing. But again, maybe it just looks that way in the image.
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Old 01-23-2004, 10:37 PM   #8
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ya that really looks kinked up
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Old 01-24-2004, 12:41 AM   #9
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You are correct! The inlet hose is kinked. You've got some really good eyes.

Whats the best way to fix that?

Also, the outlet tube as it makes it way back over the tank to the spraybar (making a serious bend/kink). Now maybe I am just dumb but I don't see any other way to undo this...

Suggestions?

Thanks
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Old 01-24-2004, 12:50 AM   #10
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One way would be to guide it better, keep them straight, etc. But if it kinks/bends/collapses that easily, I have my doubts as for the suitability. I would replace them with stiffer/thicker hoses, available in hardware stores, Home Depot, etc.
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Old 01-24-2004, 01:02 AM   #11
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Are the hoses that come with Eheim poor quality?

Here is a quick picture of the hose being returned into the tank. Do I do something wrong or is this normal?
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Old 01-24-2004, 01:05 AM   #12
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Looks like you know what, but rap electric tape around the kink just tight enough to help the hose hold it original shape. Best fix is stiffer hose.
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Old 01-24-2004, 01:16 AM   #13
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I removed the plastic elbow... (don't even know what the purpose of it was) Flow seems a bit better. Hose is still kinked though.
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Old 01-24-2004, 04:52 AM   #14
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The Eheim tubing is fine. Quality is on par with all of the others.

The angles AJ is running are a little to severe! The tubing is 12/MM (1/2"). That diameter is harder to kink than the 16/MM (5/8"). You really have to bend the 12/MM tubing at an acute angle to kink it.

For instance, that plastic elbow sleeve in the last photo is a 90 degree turn. Looks like you are combining a 180 degree turn into the top of the aquarium, and then a 90 degree turn to the right.

Why not use the hard plastic tubes that came with the Eheim? I have gently heated and bent them to accommodate my set up. Combine that with bits of tubing and you are set.

The angle out of your Eheim is also pretty tough!

Those kinks are going to create back pressure in the canister. Then you will have a reduction in flow. ops:

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Old 01-24-2004, 02:12 PM   #15
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Quote:
Why not use the hard plastic tubes that came with the Eheim?
The elbow was the only hard plastic that came with it. I have not other hard plastic tubing, besides the inlet pipe. Maybe mine was missing a few items/parts?

And now I am confused by the 12MM statement you made. My tubing states its 12MM/16MM. So what size in IN. (") does this make it? My guess is 5/8".
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