Piping Transitions

To transition from shore to the dock, the double walled piping will simply continue out of the ground and lead to the docks. The key components are the two transition sumps. One must be placed underground and is called the Onshore Transition Sump in figure A-1. Also in Figure A-1 is the Dock Transition Sump, which would be located inside of the floating dock.

Fig A-1 This drawing shows the major elements of a marina fueling system, including double-walled piping,
containment sumps, and support of the piping under the gangway.

The transition of pipes from the stationary dock to the floating dock is shown in figure A-2 below. The piping is strong but flexible enough to weave down the gangway in a wavelike formation. It is shown below in the aerial view. The pipes are hung using hangers and the details of those are shown
 below as well. I will be running both a diesel and petroleum pipes under the gangway so I am planning on have two sets of hangers right next to one another. This will allow the pipes to be replaced easily is something goes wrong with one of them.