Is the pump bad?

[DeepDiver55]

Need a couple of ideas here. Have a Red Sea Reefer DC 600. Got a notification from the app that the skimmer pump had stalled. No prob, take it apart, clean everything make sure impeller turns & no cracks in the pump body. Reassembled and put back in the sump. Got bubbles but no foam. Turn up skimmer intensity to 100% then skimmer regulator closed (highest setting) still nothing that was a few weeks ago. I’ve got a little skimmate in the skimmer neck but no higher. My thought is the pump needs replacing. Just out of warranty so not interested in sending it to Red Sea. Any comments or experience will be helpful. Thx in advance

 

[Troylee]

Sounds like the Venturi is clogged “air intake” where the hose connects. Mine build up with calcium or salt creep I have to clean them almost weekly

 

[DeepDiver55]

Thx for the idea. I missed it at disassembly, but my lfs made sure it was open when they checked.