Drain water after every use?

[Simoniz]

Ive got a Bayliner with Merc 3,0l engine and the engine is fitted with the 2 drain hoses to drain the engine block and exhaust manifold into the bilge.

The boat is in the (fresh) water 7 months of the year.

Should I be draining the water out of the manifold and engine after use to reduce internal corrosion or would the now wet surfaces surrounded by more air be in a worse state than if I just leave the water in?

 

[Gary H NC]

Re: Drain water after every use?

If no chance of it freezing then no need to drain it unless you are in salt.

 

[bruceb58]

Re: Drain water after every use?

or would the now wet surfaces surrounded by more air be in a worse state than if I just leave the water in?

Yes...that is why you are better off leaving the water in there.