I have this idea to make it easy (easier?) to do a fresh water flush on my twin gas engines which in salt water. Be nice to flush them every time, but therein lies some questions. What I'm thinking is to make some good metal T splices into the intake side before the pump and after the strainer on both engines. Run a hose from these and connect them together at a female hose bib I'd install in the transom area. Backflow preventor too, easy to get at an RV store. Every time I come home just hook up a hose, shut down the sea valves and run the engines until flushed with fresh. Pretty easy installation. So...what's wrong with my idea??? And - would I gain that much prolonged life of salt exposed componants to make it worth the effort, versus an occasional flush the normal way?