I'm surprised that PC now installs arrays but doesn't move the antenna to the back like mine. The handle would be in the bedroom on the 2552 just behind the left wardrobe.
Just don't forget you can always carry a portable solar panel. Alaska in June is a great place to be, thats where we are headed next year, not many dark hours either.
What shut me down about it was that we always seek shaded campsites when shade is available, rendering solar technology useless
the fix is rather simple. Simply TEE into the grey water drain line, AND a black water vent pipe a foot or so above floor level, put a cheap 12v water pump in-between, and Bob's your uncle. That allows you to pump the entire contents of the grey into the black, not just a "50% drain down" as using the dump valves will give you.
The fact is, if you look at the floorplans, you will see that Phoenix uses only 2 sizes of waste tank. 19 and 35. The 19 is always mounted on the driver side and the 35 is always on the passenger side. So depending on where your toilet and shower are located that's what determines which tank is black and which is grey. The exception is the 3100 where one tank is 50