Originally Posted by RainDog
My boat has 2 coolant reservoirs. I am almost certain it came that way from the factory. One is on the engine, and all that is needed I think. The other is in the port locker and related to the hot water heater I am assuming. If the hot water heater is gone, I think it can be removed too.
I guess that is the case but I didn't know HW Heaters had coolant reservoirs. I know ours has an overflow but not a reservoir, it simply drains into the bilge.
Maybe we need a reservoir.