I could post some new pics but they wouldn't be any different than the first ones I posted. I took the pump completely apart. Piece by piece, cleaned everything, put silicone grease on all the rubber fittings and then put it all back together. The needle wheel was in great shape, no missing teeth, nothing clogging anything up. Absolutely no difference in the performance. I'm starting to think that the internal pump is going haywire and working overtime by producing to much bubbles. I do know that the access bubbles are getting syphoned down into the "T" fitting and valve and into the water column which is where I'm getting the micro bubbles. But if I close the valve to the point where the syphoning stops, the foam overflows into the cup. A new pump is like $200. Wow!
This wasn't a gradual thing happening. I've done water changes before the same way and the skimmer came back online like a champ. Every time I fed the tank I'd turn the skimmer off because when I turned the return pump off to feed, the sump level would rise causing the sump to over react and each time I turned it back on, back to normal. But this last time I did a water change????
I've still got it in the empty 36g filled to the level that the sump normally is. I've tried fresh saltwater, dumped it and used the water from my brine shrimp hatchery thinking the water was too clean. The salinity is 1.025, same as the display. Temperature is 78deg. Same as the display. All the results are the same.
Silverado(pulling my hair out in Illinois)61