I would be very surprised if you pulled up to a marina and they let you fill your water tanks without paying for dockage or buyingfuel. We have topped off our water tanks often when fueling. But I guess it doesn't hurt to ask. Chuck
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas
We live in the anchorage south of Peanut island in Lake worth. Water is readily available at the riveria beach marina just west of peanut Island and north of the Port of Palm Beach. Very nice folks run the dock there.