sure, it is alot cheaper to run them that way too without having to heat them - but where's the fun in that?
Evaporation.
"How do you unhook a hot tub that was connected to an '''outside electrical outlet?'''" .... Just unplug it
Depends how big your hot tub is. Mine is about 150 gallons or 1,200 pints.
It takes about 3 days
That could heavily depend on the total capacity of the tub, and on how full you fill it.
Probably because the hot water pipes are right behind the front wall of the tub.
it is bad because you are going to a hot place to cold wich will confuse your body
Small hot tubs are about $1000. Larger ones can run up to $10,000 for a tub that can hold 8 people.
Not very much.
the termometre gets warmer
3 Cold Whales in a Hot Tub?
Yes, unless you "winterize" it by blowing the pipes free of water before the cold sets in. You should research exactly how to do this on a hot tub website like the one below