The Force drain for the fresh water tank is under the bed by the water heater. It was really inconvenient to use that everytime I had to drain the tank. I added a brass quarter turn valve at the end of the pipe where it comes out under the RV. Much easier to drain now.
My lowpoint drain valves are in the black/gray tank compartment.
I also added a stainless braided line with valve on our water heater, I drain it after every trip, no tools needed now.