I RECOMMEND FILTERING FRESH WATER BEFORE IT GOES INTO THE BOAT. ON A 37PC, THE STRAINER ON THE SUCTION SIDE OF THE PUMP IS LOCATED BEHIND THE REFRIGERATOR. IF THIS CLOGS, THE FRIG NEEDS TO BE REMOVED TO ACCESS IT.
I USE A CHARCOAL CANISTER MOUNTED ON THE DOCK, AND CHANGE FILTER REGULARLY.
AS FOR TRAVELING, I USE AN INLINE FILTER THAT ATTACHES DIRECTLY TO THE GARDEN HOSE. NOT SURE OF THE BRAND, BUT WILL CHECK AND POST LATER.