Overflow Reliability

Dugless

New member
Ok, I'm looking to switch to a sump but can't drill the tank. So I'm stuck in using an overflow box, how reliable is the siphon on a U-tube box? I'm afraid of overflowing the tank, thanks.
 
Im using one of the cheap ones that I got on ebay. Its a quietflo.
It is the u-tube design and I never had a problem with it.
I do 20% water changes every 3 weeks and never had to restart the flow when I turn the pump back on.
I also turn the pump off every day when I feed and again no problem.
like I say mine is the cheap one, its thin and kinda big, but it does work good.
 
If you're worried about a flood then your only concern should be getting a check valve for your return line. Other than that I can't see a flood coming from a wet/dry/overflow system except for something clogging a tube or pipe somewhere.
 
U Tube overflows are perfectly reliable. Just be sure you have a strong enough pump to keep bubbles blown through. What size tank are you doing this on? What is the sump size?
 
<a href=showthread.php?s=&postid=6493623#post6493623 target=_blank>Originally posted</a> by 2high
Im using one of the cheap ones that I got on ebay. Its a quietflo.

I just bought the same thing from thier web site. Was $39.99 on sale, last week. Recieved it in record time, but it arrived with a crack in it. I shot them an email ( with photo's ) and they replaced it, no problem. I just have to change out the hardware off the old one. So, decent customer support. Dont have my tank setup yet, so cant give you a report on its reliability. I took the word of the reviews here on RC, when I decided to buy.

Thier not 1/4" acrylic, but how strong does it have to be, sitting on the back of the tank? Seemed pretty strong to me as is.

On edit: Thier still on sale for the $39.99 ( 600 GPH model ):
http://store.hurricanefilters.com/
 
I've run the Amiracle and they are very solid, very reliable. Never a single issue. My only complaint is like most every overflow sold, they wont actually flow what is advertised. Very few "600 GPH" overflows will live up to that number. I'm running a Lifereef now and it is nice. Like the Amiracle, very reliable. The major difference is flow capability. It will handle a lot more. So, it really depends on how much you need to push through it.
 
I have a 125 gal tank and I'm looking at ordering a 2-tube 1000 gph overflow. I was going to use a 1000gph pump in a 25 gal sump. I'm figuring a 2-tube overflow is more reliable than a single, right?
 
1000gph in a 25g sump is allot of flow for such a small sump, it can be done but youll have to work on it allot more and air bubble problems, unless you put your skimmer on a stand and keep the sump close to full then not much room for a fuge or error

2 tubes 2 chances instead of 1 for something to go wrong. its better to have powerheads inside tank then rely on return for tank flow. if your just sticking equipment in the sump then you dont need 1000gph

i did u tubes for 8 years and they are constant upkeep with all the coraline forming in the u tube now i use the cpr and its less work but mistakes can be made quicker if you dont keep an eye on it. with that said and money is not an object , i wont go back to u tubes there to much work to maintain.

i was ****ed when i first bought the cpr cause i started reading a few bad articles and it was all operator error or a wrong setup sjm817 is a good reefer and he is con and im pro cpr. with no failure except for the first night i had it i thought i could pull the syphon and it would run fine by itself oops. I thought i got burned big time. a year later i do like it and i have a u tube in the basement that will work fine but i wont put it in.

my 2cents
 
I would not put anywhere near 1000 GPH through a 25G sump, unless you like noise and microbubbles. A good setup would be a single U Tube Lifereef and a Mag7 or Eheim 1260. The Eheim is quieter, and has more flow then the Mag7, but costs more. The Lifereef is the best overflow on the market.
 
I've used both CPR and Lifereef. The cpr needed to be watched to insure that air didn't build up in the top section. I had to purchase some small aqualifter pumps to keep the air pulled out since I don't want powerheads in my tank. The aqualifter where high maintance items (would stop pumping sometimes). The lifereef utube would plug with hair algea and coraline until I got a black acrlic box that fit over the top of the lifereef and haven't had any problems since. IMO, CPR bad, lifereef works well.
 
What size sump would you reccomend then? I was just going to use a left over 25 I had and I don't think I have enough room for anything wider then 14" as I'm placing it under my 125 Gal stand, any suggestions?
 
The sump is a little on the small side, but it will work. If it were my setup, I'd use a 40L 48x13x16.

1000 GPH is the problem. You dont need or want that much display-> sump flow. You want 3 - 5x display volume/hr, which is 375 - 625 GPH
 
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I have a similar setup. I drilled holes in the overflow tubes and ran an airline to a maxi-jet 1200 to siphon air out of the tubes. I never have to suck to start a siphon. If power goes out it will resiphon by itself.
 
I used them for years and never had an overflow.
But the problem is that you have to keep them clean, and the risk of overflowing is always present.
I drilled my tank and all my worries have gone, I sleep better now.
You know, I always had the concern of something going wrong.
Marco
 
<a href=showthread.php?s=&postid=6499849#post6499849 target=_blank>Originally posted</a> by Airman
I have a similar setup. I drilled holes in the overflow tubes and ran an airline to a maxi-jet 1200 to siphon air out of the tubes. I never have to suck to start a siphon. If power goes out it will resiphon by itself.
A U Tube starts after a power failure anyway. I would not drill, add and an airline. You are introducing a vacuum leak that did not exist before. There should not be any air in the tube to suck out to begin with.
 
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