We noticed a pipe dripping water near our roof and from some investigation determined it was the overflow for our air conditioner. I then saw the pan under the unit was full of water, and my basic troubleshooting of blowing air in the pipe did nothing but shoot some water out in another place in my attic (which fortunately dried quickly since it was so hot!)
Anyways, I decided to try a plumber instead of an AC company, and boy am I happy I did! A few years ago when this line got clogged the AC company just cut the PVC tube under the sink, used a very weak vacuum on it, and obviously a few years later here I am with the line clogged again. This plumbing company saw where the line actually went up after the bend instead of going down, found that the rear side of the wall was accessible via the air supply, reconfigured the pipe, and now it actually uses gravity instead of water pressure to drain. He even hooked it up with a tube I can remove in case I need to clear it out in the future.
I was really impressed with my plumber's work, whose name was AJ, and would definitely recommend this company to anyone needing help.
I forgot to mention that I called them at 4 PM and they showed up at 5. I mean it was a fluke that they had a cancellation but really it couldn't have been faster, and helped me avert a potential disaster. My drip pan was looking real bad, probably need to replace it too but I'll likely wait until after the summer. At least its dry now!