Need suggestions for a hang on overflow

I'd have to disagree. I never ever recommend those tube type overflows as they are a pain in the *** to keep air out of (speak from much painful carpet drenching experience) THIS however Is awesome when used in conjunction with the tube going to your power head OR as I have it, Connected to an Aqualifter pump. Beauty....you will never regret that decision.
 
The Lifereef does not need anything to keep air out of the U Tube other than the water flowing through it. There are no moving parts, nothing to plug on, nothing to fail. The LR is well known as the most reliable overflow in the industry. There are some poor U Tube overflows out there, but LR is not one of them.

What you posted is a terrible design. The simple fact that it requires a pump to pull the accumulated air from the integrated C Channel proves that.
 
<a href=showthread.php?s=&postid=8959805#post8959805 target=_blank>Originally posted</a> by chevegan
I'd have to disagree. I never ever recommend those tube type overflows as they are a pain in the *** to keep air out of (speak from much painful carpet drenching experience) THIS however Is awesome when used in conjunction with the tube going to your power head OR as I have it, Connected to an Aqualifter pump. Beauty....you will never regret that decision.

Trust me, you will regret that decision. Run a search for CPR overflows, and you'll see quite a few tanks overflows/electrical fires that have been started because the aqualifter/MJ or whatever is being used to keep the air out of the overflow fails. Lifereef is absolutely the best, most reliable overflow. Expensive, but the best.
 
I have the same as lifereef but got it from my lfs. none labeled lifereef generic version I guess. $45. (U-Tube).

I had power fails and not a single incident. . air packets/bubbles on mine don't have a chance to accumulate, they just get pushed out by water flow
 
lol well ok. Although MY lifereef kept getting bubbles and one time when I was out of town the tank kept filling and bam water all over my rented floor. I suppose it all has to do with how much your return pump is flowing though. I tend to not run a fast return so as to have more time for the skimmer to skim. Marc (melevsreef.com) actually uses the CPR style though he made his himself.
 
You are the first I have ever heard of that had bubbles accumulate in a LR if it was actually a Lifereef. To do so, you would need VERY low flow. If that were the case, you should have used the optional 3/4" U Tube.

Marc had the same problem with the DIY overflow and had to revise the design to add in an air fitting to prevent it from accumulating air and breaking siphon.

Its a band aid fix, not a good design.
 
You need around 200GPH for the typical U Tube overflow unless it has a smaller dia U Tube.
 
IMO U-Tube's are superior compared to the CPR model with the aqualifter pump's. The U-Tube will never fail used right.
 
I have the hurricane as well. $70 shipped for the 1200gph version, it is working well and i've tested power outages a ton..just to make sure it doesn't loose syphon. It has not failed once. Its no lifereef, but alot cheaper.
 
I think I'm going to opt for the LR single prefilter box at 700gph.
What silent and energy cost efficient pump would be recommended on a such a model?
Thanks
 
If this is for your 105g tank, i would use a mag 7. You'll have some head loss so you'll pry only be pushing 400-500gph from the return. It just depends on what GPH you want. I personally push 900gph on my 125g return.
 
<a href=showthread.php?s=&postid=8963389#post8963389 target=_blank>Originally posted</a> by coraladdict
I think I'm going to opt for the LR single prefilter box at 700gph.
What silent and energy cost efficient pump would be recommended on a such a model?
Thanks
I used an Eheim 1260 on my 90G setup with the single LR. I had a Mag7 before that. Hideously noisy pump. I couldn't stand it, so i replaced it with the Eheim. What was surprising was how much more flow it had despite the "ratings".
 
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