Warning: This should go without saying, but please do not post book spoilers in this thread. However, this post will contain TV spoilers up to episode 10.
I feel like really good adaptations tend to find different ways of reaching the same main plot points, the adaptation differences remind me a lot of how the expanse did it. It makes it really exciting for book readers because it's keeping us on our toes, my head was often spinning wondering how Juliet was going to make it past the ridge because it didn't seem like she was going to get the better tape.
I.T. supplies the suit and tape for assembling the suit. In the show, the new mayor mentions multiple times how upset he was that mechanical stole their tape. I feel like Juliet only mentioned once that she found out that the tape from I.T. was really poor quality and therefore of no use to Juliet for important mechanical needs. We were supposed to notice the tape was used on the seals of the suit where the gloves and shoes meet the suit. We were supposed to surmise that the shitty I.T. tape made the suits fail far earlier than they should. Juliet's friend from mechanical somehow figured that out and got supply to do a switcheroo and send the high quality mechanical tape to I.T. so when they make Juliet's suit she isn't prematurely exposed to the hazard outside and could therefore make it past the ridge.
I think the books did a much better job of explaining this and of course a totally different route to get to this point, but all books are more detailed than visual adaptations.
I read the book but my wife didn't and she did not get the tape thing at all. The TV show barely mentioned it, and the only clue it's even important to the last episode is a very quick shot of Allison's suit being taped up in the opening recap. Also the "it's better in supply" thing made no sense to her.