A little technical mystery

I came a long way to find out what it was that didnt make sense in the numbers. Here it is. Part of one of the best brewery heat recovery systems in the world, installed almost perfectly. Now I know, all I need to do is find a way of comunicating this "almost" without challenging the dignity of the genius who installed it. A visitor needs to be escorted. Standard safety rules. I hate being escorted, as it is usually by someone who is keen to show me something I dont want to see and then stops me from going the places i want to go. I managed to escape my guide a couple of times by running up 6 flights of stairs and sneaking back another way. Not very kind. I am feeling guilty about that.

Grateful to be going home soon, and for good connection with home, despite the communication challenges.