The beer line is about 56" from the coupler to the back of the faucet, the final foot or so being inside the top-mounted draft tower. I have no pressure leaks.
I bought a liquid thermometer (analog), that I guess am not sure can even be calibrated - and if it could I wouldn't know what to do. Sounds like I need to buy another thermometer now. Can someone point me to one online so I can see what it is I need?
In the meantime, should I untap this keg? I'm so uncertain of all these variables that I'm afraid somehow I'm now ruining this keg too (like now it will be flat beer no matter what I do). Sorry for all the questions, just getting a little frustrated experimenting with $50 kegs

Thanks for all your help.
- Mikey