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Old 10-21-2011, 09:55 PM   #1
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sump questions

So basically my tank is a massacre, i believe the sump i bought was built wrong so i have a couple questions, i have alot of microbubbles in my tank and i cant get rid of it tried every possible problem and its no leaks or anything like that, so i narrowed it down to my pump being to strong or the design of my sump is bad. can anyone explain to me the proper way a basic sump is suppose to be set up the way this one is set up is one baffle seperates the protein skimmer and the filter sock (which deff is built wrong because their is hardly any room for the protein skimmer) then it flows into the refugium and then over a bubble trap into the return pump section which is bigger then the section the protein skimmer is in. Now i did have this reversed with the protein skimmer and the filter sock flowing in the larger section then straight over the bubble trap but that way the bubbles were worst. its a 20 gallon long sump on a 75 gallon tank any input would be awesome please.
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Old 10-22-2011, 10:34 AM   #2
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Put a photo up of it for us to look at!
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Old 10-22-2011, 11:37 AM   #3
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If the return pump area water level is stable then it is not your return pump
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Old 10-22-2011, 12:54 PM   #4
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What do you mean is stable ?
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Old 10-22-2011, 12:56 PM   #5
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And why can't the return pump be a prob u don't think its wrong that I have a overflow rated for 600 gph and I Am pushing 950gph I don't see why the pump isn't the prob if I y
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Old 10-22-2011, 12:57 PM   #6
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If I get a smaller pump won't that mean my flow in my sump will slow up and the force from the water coming into my sump won't be as harsh hence creating less bubbles because the bubbles are created from the water coming into my sump I can see all of them coming out of my filter sock
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Old 10-22-2011, 12:59 PM   #7
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Originally Posted by Jarrett View Post
And why can't the return pump be a prob u don't think its wrong that I have a overflow rated for 600 gph and I Am pushing 950gph I don't see why the pump isn't the prob if I y
You have to remember headloss ..like said ,if your sump level is stable then your in and out is fine..
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Old 10-22-2011, 01:06 PM   #8
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Stable means the water in the return pump section does not empty out.

The return pump does not affect the amount of water coming into the sump. The gravity from the drain pipe controls how much water enters the sump.

Head loss (the amount of feet from the return pump to the return outlet into the tank) does not allow the full 900+ gph to enter into the overflow.
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Old 10-22-2011, 01:12 PM   #9
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Stable means the water in the return pump section does not empty out.

The return pump does not affect the amount of water coming into the sump. The gravity from the drain pipe controls how much water enters the sump.

Head loss (the amount of feet from the return pump to the return outlet into the tank) does not allow the full 900+ gph to enter into the overflow.

Also,its a good idea to have ball valves on your plumbing to control the flow both ways ..
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Old 10-22-2011, 03:15 PM   #10
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Stable means the water in the return pump section does not empty out.

The return pump does not affect the amount of water coming into the sump. The gravity from the drain pipe controls how much water enters the sump.

Yes the pump does affect the amount of water,as long as you have setup the correct pump and overflow together.If you pump 500g/h to the dt you will get 500g/h to the sump.

Head loss (the amount of feet from the return pump to the return outlet into the tank) does not allow the full 900+ gph to enter into the overflow.
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Also,its a good idea to have ball valves on your plumbing to control the flow both ways ..
Dont ever put a valve in the overflow pipework,only in the return pump pipework.

Also the baffles in your sump need to be the correct distance apart,if the distance is to small the force of flow will drag bubbles through the baffles,when the distance is larger the flow rate drops but the amount of water going through is the same,this is why I keep asking you to post some photo's
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