I have a 6 gallon Hot Water Tank. When dry camping, assuming the Nautilus P-1 system knobs are set to "Power Fill" the fresh water tank does the hot water tank get filled too at that time and if so, when does that happen? After the fresh tank is full? I know it isn't first because I could hear the fresh tank being filled and the plug was out of the hot water tank when sanitizing my system and nothing came out so I switched to the "City Water" connection and the Hot Water Tank began to fill immediately. Or, do I fill the fresh tank, turn the knobs to "Dry Camping" and then turn on the pump and open a hot water spigot and the hot water tank fills then? Also, if the Nautilus P-1 knobs are set to "Dry Camping" if I use hot water only, is it automatically replenished from the fresh water tank and then heated as needed to the set temperature from the manufacturer? This is my first time with the Nautilus system and it's very different from what I've done in the past. Thanks!