Anyone run with the overflow outlets under water?

[VLDesign]

Anyone run with the overflow outlets under water to help keep the spalshing and noise down?

Just curious if this hinders the drain at all.

 

[CHOMPERS]

Oh NOOZ...100% for "I hate polls". I wonder who did that. (I couldn't resist.)

SW and reefers typically run them under the surface of the sump to control bubbles and noise.

 

[FSM]

poor choices TBH. Mine is underwater, but I hadn't even thought about how that affects the flow. I've never seen a tank with the outlet above water.

 

[CHOMPERS]

Btw, I haven't tried it yet. My current project is going to get them since it will be in the living room/theater, so I'm shooting for 100% silence.

The best design that I have seen uses a Y sewer fitting with a cap on top. The cap needs a 1/4" vent drilled in it.

 

[chesterthehero]

mine are under water but only to limit splashing

 

[hybridtheoryd16]

Your over flow tubing has a built in cushion on the flow rate they can handle, or should have anyway. The pump regulates the flow of the system. The over flow & tubing just has to keep up with the pump flow or you get a dry sump and wet floor. So if you stick the outlets under water you will notice no ill effects as long as they are the right size for the flow of the system. If putting them under water causes problems for you then the fix would be to up the size of the tubing or add a valve after the pump to limit its flow.

 

[CHOMPERS]

Anyone run with the overflow outlets under water to help keep the spalshing and noise down?

Just curious if this hinders the drain at all.

Ummm...the description of the original question was some what ambiguous, but I took it to be talking about the discharge into the sump. It looks like others are reading it to be the intakes in the aquarium. VLDesign, could you clarify please.

 

[FSM]

I misunderstood. I thought he was talking about the pump output. My overflow output into the sump is pointed sideways, partially submerged, to reduce the noise of bubbles.

 

[Pharaoh]

Ummm...the description of the original question was some what ambiguous, but I took it to be talking about the discharge into the sump. It looks like others are reading it to be the intakes in the aquarium. VLDesign, could you clarify please.

I am one of those. I voted yes, but now I feel as though I need clarification.

 

[VLDesign]

Yes, Overflow Outlet. The end where the tank empties into the sump.

Overflow inlet would be inside the tank