Ok, so my main circulation pump has decided to give me problems. It was making rattling noises in the main housing, so I disconnected it (not a simple task as its hard plummed outside the sump). Opened it up to view the impeller and found a small snail gumming up the works. Cleaned it all out and re assembled and tested it out in a bucket of water. Seemed to run fine, so I re installed it. For some reason I haven't discovered it's still making air sucking sounds even when no air is being introduced on the intake side. Weird. It moves water, but not nearly at the rate as before. Something ain't right. All plumbing is clear of any impediments.
Ordered a new one to be overnighted. I'll deal with eco tech and see if I can't get a warrantee repair, then hopefully I can have the repaired one as a back up.