Washdown plug necessary?- 2000 Saltwater Optimax 225

Delaware329

Recruit
Joined
Aug 3, 2005
Messages
2
The other day while checking out another older model Merc I noticed the port for the fresh water wash down had a plug installed. Since my motor didn't have any plug installed I asked a Merc tech and he told me it wasn't necessary because of a brass check valve. Can anyone else confirm this for me? No overheat alarms and good stream from pee hole, just nervous since this is my new baby.
 
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