[C320-list] Stern Shower Leak

[Dave Hupe]

Has anyone else had leaks around the cockpit shower faucet base down into the stern compartments?  I have the original style faucets https://www.catalinadirect.com/shop-by-boat/catalina-350/hull-deck/stern/shower-valve-for-cockpit-shower-lt-2004/  and it appears to me that water is just getting into the cockpit enclosure and then seeping under the base of the faucet assembly and showing as drips coming down the threaded mounts underneath and the attached hoses. 
The faucets work fine.  I'm wondering if I just need to unscrew the faucet assembly nuts underneath, raise the faucets and replace a seal (maybe seat it on butyl rubber??)? 
Thanks for any feedback.
Dave Hupe
1994 C320 (#32)
Holland, MI