That's an amazing tank and all but being that they're a church I can't help but wonder if the HUGE amount of money that must have cost (and will cost to maintain and run) couldn't have been used in another way.
And just consider, it's all tax free. No property taxes, no income taxes, no taxes of any sort. Any other small business pays their fair share, but this church and every other pays not a dime. It's a lot easier to waste large sums of money this way.