If you haven't had a good run yet, likely frost or ice is pushing the taps loose. You might want to use a different tap next year.
I use 3 different taps, one is a clear seasonal tap, one a Leader CV tap and one a Zap Bac tap. So for, I've only had issue with the CV, they occasionally push the line off or loose on the tap. I'm quite sure ice does it. It seems to happen if I get a slow sap flow and then it freezes hard or freezes for a longer time. There I'm guessing the check ball seals (doing it's job) and the ice expands pushing the drop line off or loose on the tap. The other 2 have not done that. Unfortunately I don't know who made the clear seasonal taps, I had a full bag from years ago and used them. They have not had taps pushing loose.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.