I don't think they purposly destroy the tubes. These are boats that are being scraped. Most likely these are bust tubes. They put these Zodiacs in very rough conditions and with the replacement tubes costing $11,000 a pop, once the boats get to a certain age they just get rid of them. I would guess these tubes have burst seems due to being slammed against cost guard cutter hulls in heavy seas when they are launched or retrived.
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