I have a Sea Flush kit which I used to winterize my boat. I see it can be used to pump a solution of a product called 'barnacle buster' thru the raw water side & let it soak for 4 hours, there by cleaning any deposits. Has anyone used this method. My exchanger taken off & rebuilt 2 years ago at the marina, plus boat was stored in fresh water this past winter, so I don't think it needs much else. It is running proper temp, etc. I just though this might be enough, rather than taking it apart. Any input would be appreciated!