What's that Noise?

I've always wanted an indoor swimming pool. Somewhere to swim and relax year round. Well now I have one, kind of. It started with the sound of rushing water coming from the basement door and resulted in a large amount of standing water that is now our basement. Turns out the drain valve went out on the hot water heater and let's just say "she blew." Ugghh. The King has it under control for now and the water is draining on its own. Let's just hope it's that simple because replacing the hot water heater right now is not an option.