TRANSCRIPT

Capp: Done. Bubblers are easy to calibrate. Now for the fun ones. We get to climb on top of the tank and check the ultrasonics.
Capp: We need to make sure that the transducers are clean and perform a functional check. These are advertised as zero maintenance instruments and they are fairly reliable.
Capp: Which is good since "zero maintenance" is vendor code for when it breaks, you have to replace the whole thing.