Don't have pool up yet. My plan is to set it up and leave it. I am putting billboard vinyl under the pool. For the inflatable ring, I am going to put packing peanuts/shreds instead of air. My problem is--mine is not up. I need to know the circumference of the top ring when inflated. I can guesstimate how far around (56'). So...if anyone has theirs up, could you measure and let me know.THANKS