Hello, I own an M20K 231, yesterday I went flying and while I was climbing with the autopilot the place was porpoising up to about 5K and then it stopped. Altitude hold was fine and after landing in auburn, took off climbed again and not porpoising. After much research looks like I may have water in the static line ( didn't try the alternate as I didn't know at that time the problem). Perhaps the water drained or evaporated but reading the manual looks like I have a static port drain.
I am so sorry but can someone send me a pic of where it is? I noticed a port by the static under the tail so I am assuming that's the one and how do I drain it?
thank you so much