cheap diving cylinders

Hi, Im just showing you how to make a spare air scuba tank with cola bottle and an old bike tube with presta valve and a bike pump. with this simple and cheap device you will be able to breathe underwater for a few times like spare air.…
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This is how you build a home made scuba diving tank. Never use a sprayer that have been used with chemicals, never dive alone, don't use it in the sea, and always have a certified diver with you when using this. This video is meant for…
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