37.5 head hoses
Replaced the water supply lines to the head on our '95 37.5 last year. Tough but doable, assuming your lines are run like ours. On our boat, the lines actually run to a vented loop installed above the water line, on the inside of the hull (not a T as you describe). I reached that loop by going in through the vanity mirror ABOVE the sink, remove the 3 or so screws that hold the left side panel inside the cabinet, and you will be able to reach in and feel the loop. I did everything by feel, including installing the new hoses and screwing the clamps on. At one point, I almost thought about abandoning the old loop and just installing a new one, in a more reachable location, but that wasn't necessary. Brian.