Good evening,
whether my answer truly helps you, you really cannot know, since you at best know my profile, but neither me personally nor my work.
I can also answer your next question quite simply; however, I equally do not believe that it could calm you down permanently. It proves to me, however, that you should either place more trust in your site manager or – and I see this as more effective – invest money in external construction supervision.
Answers from a forum can be both correct and incorrect; quite often, there is plenty of nonsense to read. They can by no means permanently replace external expertise and thus provide a good gut feeling!
PS: the slot, like several others, will of course be closed before the [WDVS] is installed.
Rhenish greetings from on the road
Construction expert