Update: pichia is back. I thought I had killed those buggers off, but NO. After 3 weeks fermentation, I couldn't detect the pichia, but after 5 weeks ithere is no mistake it has revived.
Well, lesson learned on non -tamed fermentation. Stuff was insidious. Would taste fine at bottling, only to turn a few weeks later in the bottle. Then if one wasn't real careful about using what fermenter, could infest a different fermenter. Whack a mole. thankfully my keg didn't get infected, nor did other brewing vessels. Any future bugs in my garage are going to be tracked and quarantined
Some folks might like the soured taste that come from pichia. To my palate, it was not horrible, and had a unique souring affect. First taste test was kinda interesting. That said, pichia did not make any of my half dozen attempts or infections better. At best neutral, generally distracting and sometimes not again.
life is too short and Marie Kondo would jiu-jitsu me if she know I was still obsessing over this fermentation chamber. I did pick up a new 8 gallon speidel at black Friday from More Beer at a good price. No rescuing this fermenter but I will raise a glass to it's previous, honest service. Then take someone's advice upthread and use it for grain storage. Or for some future bug experiment. Actually I got a good black Friday deal on another 30L speidel
so be careful if you play with the pichia apotheca