Boat engine question

[Sman]

The one thing I do to try and prevent any rust build up in the coolant passeges is,when winterizing I run a half of a gallon of CLR through the cooling system using a set of ears and very large funnel. I am amazed at the crud that comes out but knock on wood never had an issue with buildup.

Interesting, can you elaborate a bit on what you do, where you put it in, where is is coming out. I winterize the engine and use a set of ears on the lower to keep water going through, but where are you putting in the CLR and I am taking it that it is the Calcium/Lime/Rust remover product...

thanks