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Final attempt to record building of an underground shelter using a 20 ft. shipping container. For those wondering why I didnt simply pile dirt over it without pouring a concrete cap first..... These containers are mostly sheet metal. Heavy duty as it is, the roof and sides will push inwards from the weight. Eventually the metal will rust through and youll be buried alive. My way will insure it is still there a few hundred years from now. Problem is, youd better keep an eye on your sump pump. If it goes bad or loses power, youll go in one day and find it the whole thing flooded. A surface alarm letting you know the water level is above where it should be isnt a bad idea. Putting the sump pump on a UPS is also a good thing.
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