Examples I've got:
1. Using a tank to fill car tires. It's SOOOO much faster than a compressor and when my father goes 4 wheeling, he borrows a HP80, argon reg, and has a tire-filling-thingy that fits on the end of a LP hose. An HP80 is MORE than enough to get him through even a long trip of lowering the pressure in his tires and then filling them again while on the trail. I also now bring a small tank of air when I go on road trips so if I were to get a minor flat I could keep it full while driving to a filling station instead of having to change the tire in the middle of nowhere (though sometimes you just plain have to change the tire).
2. Using hand signals in stores or in other non-diving arenas. Mrs. Sounder and I use hand signals to communicate all the time. If we're seperated in a crowd of people, we can communicate across the room or simply check-in with the other one to ensure everything is "ok."
3. Working on the boat. Before SCUBA, I had to hold my breath while brushing all the "lake schmootz" off the bottom of the boat throughout the summer which grows on it as it sits in the water (usually have to scrub it twice a summer). Now I just put my gear on and go to town. It takes a FRACTION of the time it used to and I'm not nearly as tired when finished!
So, how has SCUBA entered other parts of your life?
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