all-glass overflow behavior

windom · 03/13/2009, 09:09 PM

I have a 90 gallon all-glass overflow and I notice that air is always in the oveflow tube coming into my reefugium. Is that normal? Is there any way to eliminate this?

barrettrhoades · 03/13/2009, 09:49 PM

Yes this is normal. For water to flow well it need air behind it. You can build a bubble trap out of various materials you have lying around. I have used a pitcher with holes drilled halfway around the bottom and then put the holes in the corner of the sump. I usually put live rock rubble in there to help breakup the bubbles.

03/13/2009, 09:09 PM	#1
windom Registered Member Join Date: Sep 2008 Location: Dayton, OH Posts: 30	all-glass overflow behavior I have a 90 gallon all-glass overflow and I notice that air is always in the oveflow tube coming into my reefugium. Is that normal? Is there any way to eliminate this?

03/13/2009, 09:49 PM	#2
barrettrhoades Registered Member Join Date: Feb 2003 Posts: 123	Yes this is normal. For water to flow well it need air behind it. You can build a bubble trap out of various materials you have lying around. I have used a pitcher with holes drilled halfway around the bottom and then put the holes in the corner of the sump. I usually put live rock rubble in there to help breakup the bubbles.