I have a 34ft mainship trawler with twin yanmars. I flush both emgins with fresh water after use with connection piping. my question is should I leave the main raw water thru valves open or close after I flush.
Leaving them open would be most convenient but I'm thinking closeing them to lock fresh water in the engin would be better for the engins.
Could you give me an opinion
Regards
Leaving them open would be most convenient but I'm thinking closeing them to lock fresh water in the engin would be better for the engins.
Could you give me an opinion
Regards