Sump Q: Under/over/under? or the other way?

jupiter · 04/09/2010, 05:58 AM

I'm going to add the baffles to my sump. I've added 2 but for the third, I don't know which way to add it. Should I do so the water is under/over/under or over/under/over? Both ways make sense for different reasons. Any help is appreciated.

kimber45 · 04/09/2010, 06:03 AM

i think most use the over to control water level.

jupiter · 04/09/2010, 07:21 AM

Quote:

Originally Posted by kimber45

i think most use the over to control water level.

Yes, this does make sense. I added a pic of the 2 setups and I was going to discuss that further but I think you are right. Otherwise, it might leave the pump dry.

If anyone else has input feel free to add.

Thanks

rdlisby · 04/09/2010, 10:26 AM

I ran two baffles for the first chamber under then over, so that the water going thru the sump had less micro bubbles because it pulled the water of the bottom of the first chamber. Then as the water travels thru the sump any bubbles that do make it past the first chamber have time to rise to the surface before the pump chamber. I just built mine in January it’s my second sump and I have been pretty happy with it.

davocean · 04/09/2010, 10:41 AM

Your first baffle needs to be an over for water level for skimmer.
The last baffle should be an under, to prevent micros(since they rise) and also to prevent return pump from running dry.

rdlisby · 04/09/2010, 03:37 PM

You can still control the water level in the first chamber with the first baffle being an inch off the bottom; the second baffle would be on the bottom of the tank and only an inch or so away from the raised baffle. I guess for me Micro bubbles were on of my biggest concerns so I tried to trap them from the start.

04/09/2010, 05:58 AM	#1
jupiter Moved On Join Date: Jun 2002 Location: Toronto, ON, Canada Posts: 181	Sump Q: Under/over/under? or the other way? I'm going to add the baffles to my sump. I've added 2 but for the third, I don't know which way to add it. Should I do so the water is under/over/under or over/under/over? Both ways make sense for different reasons. Any help is appreciated.

04/09/2010, 10:41 AM	#5
davocean Registered Member Join Date: Nov 2005 Location: San Diego, CA Posts: 14,655	Your first baffle needs to be an over for water level for skimmer. The last baffle should be an under, to prevent micros(since they rise) and also to prevent return pump from running dry. __________________ There's a fine line between owning your tank and your tank owning you! Current Tank Info: SCA 120g RR Starfire, Tunze silence 1073.02 return, 40g sump w/ fuge, SWC Extreme 160 cone skimmer,Geismann reflexx 4xT5, 2x Panorama Pro LED strips, Vortech MP40QD

04/09/2010, 06:03 AM	#2
kimber45 Registered Member Join Date: Jan 2009 Location: michigan Posts: 455	i think most use the over to control water level.

04/09/2010, 10:26 AM	#4
rdlisby Registered Member Join Date: Jun 2008 Location: Denver, CO Posts: 324	I ran two baffles for the first chamber under then over, so that the water going thru the sump had less micro bubbles because it pulled the water of the bottom of the first chamber. Then as the water travels thru the sump any bubbles that do make it past the first chamber have time to rise to the surface before the pump chamber. I just built mine in January it’s my second sump and I have been pretty happy with it.

04/09/2010, 03:37 PM	#6
rdlisby Registered Member Join Date: Jun 2008 Location: Denver, CO Posts: 324	You can still control the water level in the first chamber with the first baffle being an inch off the bottom; the second baffle would be on the bottom of the tank and only an inch or so away from the raised baffle. I guess for me Micro bubbles were on of my biggest concerns so I tried to trap them from the start.