I have a 2003 SeaRay 182 with 4.3L Mercruiser that I am winterizing myself. The manual is very generic for multiple different SeaRay models. As I am winterizing the boat I remove the 5 blue plugs to drain the water. In the manual (which is generic and not specific to the 4.3L) it talks about removing hoses, however I cannot find any hoses that I can see that need to be disconnected. Every coolant line seem to lead to where a plug needs to removed. Does anyone have any experience winterizing a 2003 SeaRay and do you know of any hoses that need to be drained other than the 5 blue plugs?