I did some more adjustments today, but the microbubbles keep coming out of exhaust. Here are the latest pictures:
Wedge pipe's current position:
Water level inside the collection cup:
Bubbles still an issue:
I reduced the water level in the sump to 1" less what it was before.
The water level in the sump is 11.5" and the skimmer sits on a 4" platform. So the net water depth for the skimmer is 7.5". I decreased the water level one more inch (to 6.5") and saw the microbubbles reduce. The intensity of microbubbles are reduced but still some present at that level. I put it back at 7.5" for now.
The sump is in the basement. Is it possible that the force of water falling from a floor above could be a reason why the skimmer behaves this way?
Also the skimmer pump is close to the output of the sump which is hooked up to an external pump to push the water back to the first floor. Is it because of the suction power of the external pump that causes this?
Wedge pipe's current position:

Water level inside the collection cup:

Bubbles still an issue:

I reduced the water level in the sump to 1" less what it was before.
The water level in the sump is 11.5" and the skimmer sits on a 4" platform. So the net water depth for the skimmer is 7.5". I decreased the water level one more inch (to 6.5") and saw the microbubbles reduce. The intensity of microbubbles are reduced but still some present at that level. I put it back at 7.5" for now.
The sump is in the basement. Is it possible that the force of water falling from a floor above could be a reason why the skimmer behaves this way?
Also the skimmer pump is close to the output of the sump which is hooked up to an external pump to push the water back to the first floor. Is it because of the suction power of the external pump that causes this?