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This is a discussion on sump light within the Saltwater Aquarium Equipment forums, part of the Beginner Saltwater Aquariums category; --> Well not sure what I'm doing wrong. Here is the link to the picture.

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Old 08-07-2008, 08:43 PM   #11

Well not sure what I'm doing wrong. Here is the link to the picture.
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Old 08-07-2008, 10:23 PM   #12

Ok no more bubbles making it to the main tank. But still getting lots of bubbles in the down flow pipe. The level in the sump is 2 inch from suface were the overflow drains. With all the bubbles it is splashing some of the spray on the rim of the sump. I'm guessing I should have not made the level so high. But was trying to use as much water as possible. I wonder if putting the Boi-Max in there or some small live rock would help. Also I guess I could maybe lay a small sheet of plexie just were the drain line is. I sure would hate to have to start all over.
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Old 08-08-2008, 06:49 AM   #13
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Well, yes, I would have made the baffles a bit more even as far as the overall height is concerned. The good thing is, they're easy enough to make and you can keep making new alterations based on lessons learned. That sump will yield increased Salt-Creep, but should function properly otherwise. Here's a look at my latest design which has been in operation since Dec, 2007. I am happy with this sump, and have little in the way of future modification needs.

Originally Posted by SKAustin
Here's a look at my new sump as it sits awaiting the test run. Ive
incorporated a few new ideas into this sump over the previous. The inlet
section is covered to drastically reduce the Salt Creep from inlet and
skimmer bubbles. The increased width of the bubble trap slows the water
travelling through it thus allowing for more of the finer micro bubbles to
stay within the covered chamber. It also allows for easier cleaning of that
section. The Flex-hose in the return section should eliminate noise
transfer from the return pump. Suction cups were also installed on the
base of the return pump to reduce noise transfer. Ive also incorporated a
filter sock and bracket to reduce the detritus build-up in the sump. and
finally, the tank was upgraded to a 30 gallon long, allowing for 33% larger

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Old 08-08-2008, 06:56 AM   #14

I like the sock filter. Is that a media filter bag? That would proably cure most of my problems. How often do you have to clean it?
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Old 08-08-2008, 07:19 AM   #15
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It's just a filter sock. It's designed to catch larger particulate matter from the water entering the sump. It's not a media bag. The filter socks need to be changed out every 72 hours, and washed in a bleach only wash. If you dont change these out religiously every 72 hours or less, they become very counter productive
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Old 08-08-2008, 08:08 AM   #16

I think I figured out the problem. I'm using a CPR50 overflow with a mag drive 5 pump. I think the pump is to small. If I reduce the overflow line a little to slow the return flow from the aquarium. The bubbles go away. So I'm guessing I need a larger pump. Then I can adjust the flow rate on the pump. Thanks for all the help SK.
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Old 08-08-2008, 02:34 PM   #17
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Any time, Though I wouldn't count on a larger pump solving your problem. You do want to closely match your return pump with your overflow. The increased flow should may reduce the bubbles generated from the descent through the plumbing, but the bubbles generated from the water entering the standpipe may increase.

That fact is of little consequence anyways. Ultimately the aeration generated here is beneficial to your system. Not only does it keep the water well oxygenated, but it also aids in the control of diurnal pH swings by drawing CO2 out of the water.
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