I have a 1991 Hunter Vision 32 recently purchased and I am trying to fix some problems discovered after purchase. There is a small leak coming from the knot meter on the port side of the bilge. I think Hunter installed Raymarine ST50 knot meters on this model. Could anyone confirm this? I downloaded the owners manual for the ST50 but it does not say what type of sealing compound to use. Does anyone have any recommendations on how to try to fix this leak? The boat is currently on the hard in winter storage and I would like to fix this as a spring project.