the lift

Some teaser (and subject for grammar blitzkrieg)

Den, colleague of mine, has talked me into making a trip to ocean floor on weekends. He was so excited about it, by contrast with his common indifference and lack of emotions.
Probably, this was worth 150 credits per one ticket. Well, turning abandoned deep mine, especially if it is located under huge mass of water, into first class resort is an expensive undertaking. Watching exotic fishes, shiny walls and columns made of rare minerals, natural caves, was something, not to mention spa with geothermal heating, all these things made 'Deep Odyssey' quite an unique place.
Andrea decided to go with me, too. Not that she was delighted by ugly deep water fishes, archeology and so on. Still place was trendy, nice topic for chatting with her friends and blog, I presume. Oh, she just could go because I was going.
On the surface halls were magnificent, marble, floating floor panels, glass and a nice girl in Odysseys uniform, guiding us to lifts, talking much about various wonders of the ocean. We entered building with a group of children, however, they were going some other way, so we arrived to the lift doors alone: Andy, Sherry the guide, and me. We were supposed to descend alone, so finally, before leaving, guide asked us
- Oh, I see you are inflatables, then would you like to use pressure compensator?
- What kind of compensator?
- Well, as air pressure will rise, as you move downwards, it can bring some inconvenience. Basically, you will feel a bit let down.
Then I remembered what Den told me about that, he definitely not used any pressure compensation. And was quite embarrassed, as he said:
"Lifts deserve special notion, as shaft is about four kilometers tall, it takes time to reach bottom. Two flesh and bone ladies in my cabin would be bored I guess, unless I was there, presenting free men deflation show. In the beginning it was ok, just some weakness, you know. But once we've passed half the way down, I started to really crumple, struggling to hold my jeans in place. Then I just flapped to the ground ... at least these two gals had some fun looking, we've a cute chatter once I was pumped up, and even a date with Susie later ..."
While I was pondering about the matter and remembering Dens story, Andy has got us two portions of 'liquid pump' as they called it. After some hesitation, I've gulped my portion. Nothing happened. Good enough, because lift hasn't arrived yet. We then had time to listen explanations about its workings.
- This thing doesn't have visible effect until you are exposed to mild ultraviolet radiation of specific frequency, normally it just opens microscopic pores in skin (she off course meant skin of inflatables, don't worry), normally this results in air leak and deflation ...
- Then how does it helps us?
She continued
- Thats normally, but this cocktail alters process, preventing air from moving outside. I.e. one way road for air. Cabins have hidden UV lamps, so
In that moment our lift has arrived, guide wished us good luck and fun. We entered shiny metal cabin. Then things become inevitable.