Black Valkyrie
Active Member
The closed cooling system is one of two cooling systems on your boat. The heat absorbed by the coolant on the closed side is dissipated in flowing sea water on the second (raw water) side. Think of the raw water side like a radiator on your car. The Salt Away would treat the raw water side of your system.
HTH
So how can I tell if there is a flush system.already installed? where do I look?