Here is a picture of the new install. The tank locker was originally level with the top of the locker. The lid was 3” above the closed lid, so I placed stacked 2x and 1x boards under the board into which the locker is mounted. Screwed everything together with wood screws. Used zip ties to lift the new hose off of the steering quadrant about 1/2”. Slight downhill slope allows drain to work. The exit thru- hull can be seen at the very bottom of the transom. Several days of sailing and no water in tank. Thanks, again for all the ideas.