Fiberglass with common resins is hydroscopic so it absorbs water, hence the reason for coatings. They are washing and waxing the coating to make it look nice. If they did not do that, then the sun and air would degrade it and make it look ugly. But you can recover an ugly coating with a fine...
I can't way for sure without knowing the context, but a well is a hole in the ground from which you draw or pump water. But it could mean something else in another context.
Yep. Blew up a house that way when I was a kid. Made a great fuel air bomb, but I was too young to understand what one of those was at the time.
You do not need a stoichiometric ratio because burning happens on the surface of each atomized droplet. This is why you can run a diesel engine...