Hypothetical Question Thanks for Reading Hi Everyone, I'm a Newbie here lurking long time here and elsewhere not new to Boats but new to my particular Engines and Configuartion I have twin 496 mags in an 11M Chris craft My initial searches were for competent raw water flushing system and monitoring cooling I'm trying to get my head around it all and can find little information or logical approaches so Flushing the Raw seems a choice of muffs or some sort of system embedded in the raw water circuit I'm struggling to understand why there is no standard fitment from new It appears the gain from failures due to poor flushing meets the criteria of the money chain for Mercruiser So Im interested in backing up my cooling and using this point to flush as well so hypothetically if my leg impellers fail in my configuration I will get no raw water as my raw pick ups are through my legs If i were to install a raw water pick up in my hull and my leg impellers failed would the salt water pickup suffice or would if I continued Running damage my legs Does the raw water cool anything in the leg or is it passed direct to the raw system inboard thanking you in advance Davo