Bubbles from my return pump????

[CTepfenhart]

I have a pump that sits in my sump to return water to my display tank but I get small little bubbles coming from it. I have tried a prefilter on the intake of the pump, a second utube on my overflow box, Changing the the tubing. The tubing is secured by metal hose clamps and the water level is good???? Any imput would be great.... Thanks!

 

[uscamaro]

Is it making any noise like a slurping sound?

Also, is it a wet/dry filter?

 

[SAAVE853]

Just some thing to try: elevate the level of water in your sump an inch or so.

 

[mr_X]

put a filter sock on the drain tube. just make sure you clean the filter sock regularly. what does your sump look like...can you post a pic?

 

[cabezon]

Sometimes the intake can create a vortex that draws air down. Putting a sponge over it might help. Could be the sump design. Got baffles? Protein skimmer?

 

[CTepfenhart]

Is it making any noise like a slurping sound?

Also, is it a wet/dry filter?

No... And it is wet.. I have tried 2 diff pumps with the same result!

 

[CTepfenhart]

Just some thing to try: elevate the level of water in your sump an inch or so.

Tried that no difference!

 

[David S]

how is the water entering the return pump section? if bubbles are being caused by this water flow into the return section your return pump will pump those bubbles into your dt but they will be a lot smaller and a lot more of them!

 

[melosu58]

Moved to General Hardware and equipment discussion.

 

[mr_X]

the bubbles are most likely coming from the water coming down and hitting the sump area in the intake. that and/or the skimmer, if any exists. you are trying to fix a problem at the wrong end.

 

[SAAVE853]

Tell us more about your sump design....are there different chambers, baffles, skimmer????