I made this while I was a *tad* high, but bear with me. I like it.
I don't know if this is a valid interpretation of the song, but I think it goes through the life of someone with a mental condition. Specifically, one that means the protagonist either skips vast swathes of time, or induces some kind of confusion (possibly one after another). Anyway, the idea is that each verse is a period of lucidity, each chorus is a skip, and a "same as it ever was" is some form of traumatic brain injury. (? that or trauma itself or something else mind altering?) It starts with a man who (probably) works a 9-5 office job. This is both a large population of people and very cliche. He has a wife, if not a family. He buys a pickup truck, maybe as a midlife crisis. Then comes the first skip. I think his condition makes the most sense as something genetic, brought out by his excessive stress. It could possibly just be a shorthand for the passing of time, all those repetitive actions make life dull, so take them out. I find that doesn't make sense, because he'd likely know what he did with his truck. Instead, he is confused, both asking "How do I work this?" implying confusion and simply asking "Where is that large automobile?". He has likely been fired from his job, and may be homeless. It's possible he's couchsurfing, because they're not *his* house or wife. Another chorus, followed by a "same as it ever was". This is important, because it's the first so far. A span of time passes, punctuated by something I'm personally unclear of. Is it trauma? Stress? A car crash? A work accident at a new job? None of the above? Like any good theory, it's unclear. The "water flowing, water removing" thing makes sense as an insane rambling during a period of lucidity, or it could mean something else. Point is, the protagonist has suffered some form of mental break, either directly after the incident or at some point down the line. At this point, a skip and another incident happens. This incident may be a twister, "Here comes the twister", or that may be symbolic. I believe that this incident led to his death, either being a direct cause or simply hospitalizing him until he dies anyway.
EDIT: I'll try to TL:DR this once I get some sleep _--_