Microbubbles! But not from skimmer!

Can't lower my return PVC as it is premade and came with my marineland tank with built in corner overflow.... Should I raise tank water level with the ball valve I have installed?

 

lol well make sure it is bubbles first and then decide if thats what you would like to do

 

Raised water level and the pump out worked the drain, no good there. Did the light test and def microbubbles....
Sending you a pic in a second

 

outside of me physically tinkering im not sure what else could be wrong....there is definitely no bubbles in the sump after the skimmer portion?

 

you'll have to do something to get your return just below water level I will bet. Just that one thing will give you the micro bubbles. I would like to see the pic as well.

 

here is return

what can I do with this??

Wonder why they designed it this way if the return pvc needs to be submerged?????

 

Let me know if you need more pics to diagnose problem and help with solution.

Maybe trim the pvc pipe??? Get ore loc tite fittings to add to existing to make it up and over the tank corner plastic piece??

 

the return...I would actually get one or two more PVC elbows and drop it down some, then reattach the flow accelerator. My return is all PVC, so that's how mine is. I'm biased

 

Perhaps you have a hole or some kind of air getting into the return line. If you turn off your pump and check for the slightest leak that might be the thing. Like a venturi valve, if you're sucking air into the line, you create a mixture of air and water. Output will definitely be micro bubbles if the hole is very very small.

 

This is what I would do...AND like also mentioned above, check your lines for small holes 55gfowlr is correct in his post.