Do It Yourself (DIY): How much weight would four empty, sealed, five-gallon water bottles keep buoyant in water? - Quora
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American Maid 5 gal Water Bottle, BPA Free, Durable, for Top and Bottom Load Water Dispensers - Walmart.com
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PUDHOMS 5 Gallon Water Dispenser - USB Charging Universal Fit Water Bottle Pump for Drinking Water Portable Automatic Electric Pump for Home Kitchen Office Camping Switch for 2-5 Gallon Jugs - - Amazon.com
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