[nukey99]

We do not have that breaker and don't have the y-valve.  However, the information you shared tells me how I will set it up when we get the boat pulled.

As an fyi - our Glendinning cable master is struggling to retrieve the 50 amp line.  I've decided to take that out and have a standard connection put in.  It simplifies the boat, removes a point of failure, and for 90% of our boat use, it means just unplug and leave it at the dock.  For longer trips, I can coil it up by and and put it in the engine room or the trunk.