There are a couple of threads along this subject. Here is one -
Use the google
search on the site. I used "head pump sea water", without the quotes to find the thread above.
I am going through a similar diagnosis myself. For me, I have Jabsco
and think it is probably time to replace the pump. The consensus on here seems to be that is that it is easier and not much more expensive to replace the pump instead of the rebuild
kit. I am also thinking of changing to electric
. I guess it will depend on how ambitious I am this winter while Juno is on the hard