I was wrong about using a digital level for every rail alignment
For years I swore by my digital level, thinking it was the only way to get a perfect plumb line on guide rails. Then a job in an old building in Philly last fall, with all its weird magnetic interference, made the readings jump around like crazy. I had to go back to my old trusty spirit level and a plumb bob to actually finish the job. Now I only break out the digital tool for new construction where the environment is controlled. Anyone else run into issues with tech failing when the building itself fights back?
Heard about a buddy who was fixing up a 1900s row house. He pulled up a floorboard and the whole section of subfloor just crumbled into dust. Then he found a pipe wrapped in newspaper from 1923 that started leaking the second he touched it. The place felt like it was actively undoing every repair he tried to make.
That "weird magnetic interference" thing is interesting, I mean I've had that happen too. But honestly, sometimes those jumps are just from a low battery or a bad calibration. It's easy to blame the old building when the tool itself might be the issue.