Air bubbles in U siphon tube
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Air bubbles in U siphon tube

This is a discussion on Air bubbles in U siphon tube within the Saltwater Aquarium Equipment forums, part of the Beginner Saltwater Aquariums category; --> Hello... Im having a problem with the siphon U tube in the prefilter Box, every day is getting full of air, so the water ...

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Air bubbles in U siphon tube
Old 09-06-2007, 10:41 AM   #1
 
Air bubbles in U siphon tube

Hello...
Im having a problem with the siphon U tube in the prefilter Box, every day is getting full of air, so the water flow is getting reduce every day until i suck the air out.
But i'm getting tired of this and I wonder if any of you guys have an idea of how to get rid of the bubbles.
Thanks.
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Old 09-06-2007, 12:23 PM   #2
 
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I am not sure where to start. Can you tell us what type of filter it is so we can look at it or even better, post a pick of it along with your water level and hopefully we can help you figure it out.
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Old 09-06-2007, 12:36 PM   #3
 
I have a wet/dry filter.
My problem is in the overflow box. There is a tube in form of a "U" that works as a siphon to bring the water down to the wet/dry filter. That tube get full of air bubbles all the time...
So I was wondering if any of you had an idea of how to fix the bubbles problem in the tube.
Thanks.
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Old 09-06-2007, 01:27 PM   #4
 
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Ok, I think I understand. If the syphon is end that is letting the water tricle is not submerged deep enough then it will allow for air to collect. If oyu can, try putting a cup, bowl, small dish or anything under the outflow end so that the water pools about 1/2 inch above the bottom of it. This will help to prevent air from getting in from the bottom. This could also help to distribute the outflow to the wet dry and provide better effectiveness.

What type of pump are you using for the inflow or is it gravity fed?

Hopefully someone who knows nore about them will help and give some more useful advice. I have messed with gravity feed before but never with a salt tank so I am still learning here also.
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Old 09-06-2007, 01:54 PM   #5
 
OK. I'll try that tonight. I'll tell you if it works.
Is gravity feed.
Thanks for the idea.
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Old 09-06-2007, 04:06 PM   #6
 
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One thing that really helps with those types of overflows is to make sure that there is enough water in the back side to cover at least 1.5" of the u-tube even when it is not running. To accomplish this on my tank I installed 2 1" threaded male adapters into the receiving bulkheads so that it traps water back there. That and make sure your U-tubes are no more than 1/2" above the bottom of the box in the front chamber. You might try raising and lowering the front chamber to help reduce the amount of bubbles that form within.
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Old 09-24-2007, 10:22 AM   #7
 
Re: Air bubbles in U siphon tube

Quote:
Originally Posted by pescao
Hello...
Im having a problem with the siphon U tube in the prefilter Box, every day is getting full of air, so the water flow is getting reduce every day until i suck the air out.
But i'm getting tired of this and I wonder if any of you guys have an idea of how to get rid of the bubbles.
Thanks.
I had the same problem and it is frustrating. I have now sloved my issue. I took some airline tubing, ran it from my powerhead into the U-tube. It sucks all the air out. I leave it hooked up like that all the time. I have duel u-tubes, so I got 1 u-tube under control and started having the same issue with my other. I purchased a small rio 50 powerhead and did the samething to the other u-tube. Not one issue since then. I am new to this also, not sure if this is the preferred method but it has worked for me, not one problem since. Hope this helps.
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