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Megan&Jason 
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 Topic: micro bubbles
Posted: October 27 2009 at 7:54pm |
i just set up a 210 on sunday every thing is running good the water cleared up but i can not get rid of the micro bubbles.
my sump is 36"x18" and i put 2 deviders in, there doesn't apear to have any bubbles in the chamber before the pump it seams the pump is creating the bubbles it is a barricuda any sugestions please
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Red sea 650 and two 35g red sea
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Jeffs_little_ocean
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Posted: October 27 2009 at 8:09pm |
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When I set up my tank in august I had microbubbles for about a week and then they went away as it stableized.
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Megan&Jason
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Posted: October 27 2009 at 8:31pm |
i hope you are right. is there anything i can try now
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Aquarium Creations
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Posted: October 27 2009 at 10:36pm |
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can you please post a pic of the sump
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Megan&Jason
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Posted: October 27 2009 at 11:48pm |
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Megan&Jason
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Posted: October 27 2009 at 11:50pm |
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Jeffs_little_ocean
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Posted: October 28 2009 at 10:11am |
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Jason, is there any chance that that blue sponge could have any chemicals on it? Even brand new sponges are sometimes treated with products for cleaning? That would definatly create afew bubbles.
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Aquarium Creations
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Posted: October 28 2009 at 11:55am |
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it looks like the sump doesn't hvae a real good bubble trap, also why is there silicone all over the pve connections?
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Jeremyw
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Posted: October 28 2009 at 12:05pm |
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so eric what is a good buble trap then?
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Megan&Jason
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Posted: October 28 2009 at 1:21pm |
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I got those blue pads from a fish store but removed them I siliconed the PVC because I was told it might be sucking air before the pump but it was not so wasted silicone is all
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Red sea 650 and two 35g red sea
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Aquarium Creations
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Posted: October 28 2009 at 4:16pm |
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a good bubble trap IMO has at least 3 dividers for the water to go down then up before it gets to the pump, Remember 1 little bubble sucked into your pump is a million little bubbles when it comes out.
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jhodges
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Posted: October 28 2009 at 10:06pm |
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1.5" intake might be causing cavitation. Assuming thats 1.5"... also 90 before the intake might as well.
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jhodges
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Posted: October 28 2009 at 10:12pm |
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you can try to put a dixe cup over the intake with about half the cup cutout and turn the opening towards the area you dont see bubbles...if they are getting through the baffles. Things to look at: "skimmer" if its leaking bubbles turn of skimmer for a long period, and "filter sock over return line" from tank to try and cap bubbles that have made it through the drain.
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Megan&Jason
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Posted: October 30 2009 at 7:28pm |
i tried the cup trick but it did not work
i think it is eather the 90 turn like jhodges said or the pump is just to much it is 3000 gallon an hour.
what if i replaced the 90 with a 1' hose so the turn is more gradual, or add another devider or move the sump and get a straight pipe
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jhodges
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Posted: October 31 2009 at 2:11am |
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If you have room...I'd take the ball-valve out and butt it straight up to the tank. You don't want to throttle the pump from the front anyway. Only reason to put that valve there is if you want to change your sump out which its easy to drain anyways. Mine I put ball valves after the OM split, but you have to be careful not to put too much back pressure on the OM when pump is running.
Also, is your flow in the tank really moving the surface water? If it's overly agitating the surface, bubbles could be coming in that way and getting sucked in the return... If this is the case you can move your outputs around so they aren't agitating the surface too much and the same with the sand. Kinda hard when your pushing that much gph, gl :P
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jhodges
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Posted: October 31 2009 at 2:12am |
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I'd also try the divider, looks like you have room.
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Mark Peterson
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Posted: October 31 2009 at 8:26am |
I saw this thread a few days ago and ignored it, believing that an easy answer would soon end it.
Today I notice that it is still going.
You are not getting the answers you need,
nor is anyone asking the right questions  : 1) Do you know how to discover if the air is actually being sucked in at a plumbing joint?
2) Is that a bag of AC and a bag of AA (Activated Alumina) I see laying on some rock in the sump?
3) Is there a strainer on the return pump intake?
4) What is that Poly hose going diagonally across the back?
5) What is that flexible PVC pipe looped above the pump that appears to be connected to a bulkhead above the pump intake?
6) Is the sump sitting flat on the bottom of the stand or is it resting on blocks?
I realize that some of those questions have nothing to do with the microbubbles.
We can definitely help you eliminate the bubbles and improve other things as a bonus. 
Edited by Mark Peterson - October 31 2009 at 8:30am
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Megan&Jason
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Posted: October 31 2009 at 5:02pm |
1) i do not know how to tell
2)carbon,phosphate
3)no
4)return hose from the tank white pump to tank clear
5)that is if i have a power outage and the sump doesn't hold all the water it will go into a 5 gallon conainer i tested it and about a gallon goes in there
6) it is resting on blocks beacuse the pump and bulk head don't line up
thanks for hellping me
Edited by Megan&Jason - October 31 2009 at 5:05pm
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Mark Peterson
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Posted: November 02 2009 at 4:40pm |
Okay.
1) Unplug/turn off the pump and as quickly as you can shut off the intake valve. This holds the water in the lines so that if there is a leak, often it's a pinhole leak, you can see where it is leaking and fix that joint. To fix the joint allow the water to drain and dry the leaking spot, then dab some PVC glue on it. Let it sit for at least 1/2 hour before turning the pump back on. Silicone is not as effective and takes too long to set. If the leak is on the other side of the intake valve, you will have to plug the intake at the bulkhead with a PVC threaded or slip plug.
3 & 2) The intake bulkhead should ALWAYS have a strainer. Without a strainer it could suck something in and ruin the impeller blades. A new impeller is pricey.
The best way to place bags of AC and AA is right next to the intake strainer. The water moves much faster there and water is drawn through the bags better there. I use bags made of Tulle/Bridal Veil material. It has larger mesh allowing easier flow of water past the media, but becareful the holes don't let the media out!
4) Why is the return hose looping down? Make it more direct to the tank to reduce drag/restriction of the water flow.
5) That looks like an accident waiting to happen. The sump should hold all the backflow of water. If not then other changes need to be made in the return nozzle placement up in the tank and/or the pump needs to be throttled back. Honestly I don't know how that set up could work because the loop appears to go up above the level of the sump. The sump would overflow before water could go into that overflow container. Maybe I'm not seeing it right.
6) Acrylic tanks fail when placed on blocks like that. I would recommend the following steps.
If there is flexibility of the piping from the bulkhead to the pump do the following:
a. Turn off the pump and let it drain
b. Close the intake valve
c. Loosen the fittings at the intake side of the pump
d. Lighten the weight of the sump by removing much of the water
e. Carefully lift the sump and removing the blocks one side at a time.
f. Retighten the fitting at the intake side of the pump, open the valve and watch for leaks before and after turning on the pump.
I suspect the piping between the bulkhead and pump is not that flexible. In that case remove that piping and replace it with flexible PVC after lowering the sump off the blocks as above. Do Not re-install a Ball Valve there. Without a Ball Valve there will be more of the fexibility that is needed in that short run to the pump. Without a valve there, it's very simple to close off the water from the sump to the pump by removing the strainer and screwing in a PVC plug into the bulkhead from inside the sump. If the plug needs to totally seal the bulkhead, as when the pump is removed, just use some teflon tape on the plug to make a better seal and allow it to be screwed in tighter.
I have to run now but if you have any questions just call or post and I'll continue helping with this.
Edited by Mark Peterson - November 02 2009 at 5:34pm
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Mark Peterson
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Posted: November 12 2009 at 8:09am |
How goes the quest for bubbles?
Sorry if my suggestions were overwhelming. I went wild there.  |
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