Micro Bubble Problem

[joyful23]

I have a problem with micro bubbles coming in my left return hose. I have tried moving the return pumps around with no avail. Any suggestions?

 

[joyful23]

Anyone?

 

[tat2d]

Check all the connections between the return pump and the return. A small leak will sometimes draw air in. Are you using flexible or hard plumbing? what return pump? :thinking:
Bobby