2003 Safari Trek black tank flush?
My neighbor has a new to him 2003 Safari Trek and needs help flushing his black tank. There is a hose connection marked "Black Tank Flush". The problem is when the hose is attached and water turned ...
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On our Georgetown there is a back flow valve may want to check if has or if is bad. Also, my black tank flush will only work with black tank empty handle in the open position.
