OK Gang hopefully one of you experts can help me out here.

We've got a 1999 50 Gibson Cabin Yacht with onboatr 100 gallon freshwater tanks and an exterior freshwater connection to take water in from a dockside fresh water hose.

We always seem to be drawing from the holding tank and never from the dock connection. Filling the holding tank gets a bit tedious

What boating god do I need to sacrafice to in order to use the dock water connection? I've looked all over and don't see any obvious valves and the owner manual makes no mention of this.

What am I missing here?