<SNIP> "... Mike Cook, my mechanic at Herrington Harbor North, has recommended an RCI fuel purifier for the filter element." John: Before deciding on which unit to install I suggest you consider the Gulf Coast filter. Check out their website at gulfcoastfilters.com. I installed one several years ago, and have been most impressed with the job it did on cleaning up our fuel and tanks. I followed the layout recommended by Capt'n Wil (see the T&T archives), but have since upgraded the pump to the Oberdorfer bronze gear recommended by Gulf Coast for tankage of 500 gallons or more (120 gal/hr; we wore out the little 60 gal/hr Walbro recommended by Capt'n Wil). Because of height limitations in our engine room we installed the whole system on a bracket that allows the filter body to be tilted so that the element can be removed/replaced. My recollection of the engine room in your 44 suggests height limitations may not be an issue, but if it is, the bracket installation is an easy solution. Larry Telford Carpe Diem 1985 Royal Star 42 Emery Cove YH San Francisco Bay