Also on the wet package on my truck, the hose couplings have pressure balls in it that open an close valves in the coupling and when you hook up to it, if you don't take a hammer and knock the coupling down nice and tight it might now open the valve.
I need help again! Trailer won't dump
Discussion in 'Tanker, Bulk and Dump Trucking Forum' started by parsonsba, Sep 19, 2014.
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