I think I understand the hydrostat pretty well. I was really grasping at straws with blowing air through the line. The hydrostatic valve is under the same cover as one of the main drains so I just hoped the bubbling might dislodge something. No such luck. I also just couldn't bring myself to believe that debris was causing my issue since it only started leaking when I started the pool pump.

Alas I was able to correct the problem. I had to go in the pool at 48 degrees. I didn't think I'd make it. It was cold! It took my breath away for a minute and then I got as used to it as you can get I suppose. 4 or 5 dives down and I got the cover off. Found one tiny little leaf, like a blade of grass thin. Took it out and flipped the valve a few times.

Then I waited a day and checked the level, no water loss. I am now full and clear. THanks for all the tips guys. Sorry I didn't update sooner.