Over the winter I replaced a sea cock, tapered fitting thread on the sea cock onto the straight thread of the thru-hull. The folks at west marine advised me not to use PTEF tape when I fitted it, as its a tapered thread.. But is seems to have a very slight leak.Do I need to remove and refit the next time the boat is hauled ? Or do you think it might fix itself as the green fur builds up on the threads ?Help. - And thanks,Sven.. Beneteau 281. "Tradition"