Agreed, red flag in the view window when tank in use is empty, and handle should point to primary tank. As for the switch over, there are several thoughts on it. I only run on one tank even if it might mean going out in the cold or rain to turn on the other tank. Many turn both on and let the auto switchover Reg take care of things, which is fine, but you have to remember to regularly check that window or you could wake up cold to two empty tanks. We each have to decide what works best.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top