Jura's head/galley sink thru-hull is on the port side, just aft of the bulkhead separating the head and fore cabin.  The hose from the thru-hull leads to a bronze (Groco...I think) strainer and then splits to provide both the head and galley sink with sea water.  I like the arrangement.  The thru-hull is a sufficient distance from the black-water head discharge and the strainer provides an easy way to inject anti-freeze in the system for winter layup.

The hose run from the head to the galley is a long run, but the previous owner was wise enough to thread a nylon line through the bilge to facilitate pulling new future hoses through.