To turn the water off at the source of the Big Pipeline you need to. use two wrenches to remove a bolt from the plate that covers the end of the pipe coming. out of the side of the stream bank. Twist the plate so the water streams out of the pipe and into the stream. Next, take a towel and reach into the pipe and use the towel to plug the lateral pipe which is the start of the Big Pipeline. Leave a tail of the towel coming out of the pipe so the towel can be pulled out to unplug the pipe.
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