I want to buy a portable inflatable hot tub on my balcony, this holds 250 gallons and would weigh about 2500 without anyone in it. the balcony is 4 3/4 inch thick concrete slab that I'm sure is reinforced with iron bars. I know the weight is high, but concrete should be able to hold that kind of weight, really when it's distributed so evenly. I realize it might not be the best idea to have 250 gallons 5 stories in the air, but I would not have more than two people in the tub at a time. Has anyone bought an aero portable hot tub and accomplished this already? Or will I be making the news?