How much does it cost to run a hot tub per month? Is electricity the most expensive expenditure and everything else is nominal? Do you need to keep it running everyday and then turn it up higher an hour before you use it? What does it cost if you only use it one day a week or 5 days a week? Does it cost more to run in the winter compared to the summer? How long can you stay in one? Do you smell like chlorine when you get out and you need to take a shower? Educate me please?