Good solution for winter but a pain to fill

I bought this to use year round. It works well at keeping the water from freezing even if it is left outside but its so hard to fill and carry, there have been a few times while i was walking it to the coop the bottom spun around and came off spilling water everywhere and then i had to refill it again. does have somwhat of a support to help it stand upsidedown while its being filled. I've just started filling up a bowl every day instead. I will be investing in something that has a top fil and probably won't use it till next winter and only when i absolutely have no other choice. it's a great idea and the heater works well but would probably be easier if it was a top fill. on the up side it costs next to nothing to run. i really didn't even notice a change in my electric bill, it's only 100 watts and is on a thermostat, i also have mine on an outdoor timer so it shuts off at night and comes on arounf 4am to thaw the water before the chickens get up