9. Scuba Gas Tank
Estimated New Cost: $50–$100*
Estimated DIY Cost: $50*
Oxygen is your best ally if you get caught off guard and have to make an impromptu excursion to the ocean floor, which happens frequently. Before descending, most of us would put on a wetsuit and secure our well-worn oxygen tanks, but not this guy.
Gas Tank for Scuba Diving ©Imgur.com/Perhael
Rather, he has an old gas canister and a hose. Even if the canister was empty before being filled with oxygen—which is unlikely—this is still not a safe procedure. There’s something wrong with this configuration. In our opinion, we’d like to gamble on the fish.
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