Good morning, I recently posted a question about redoing my pool and over the past few days my spouse and I have been discussing our plans for the pool area. I'm thinking my current pool finish has a couple years left so I want to start planning now so I can set money aside to redo the inside but we've also been discussing how it would be nice to have a spa attached to the pool with a waterfall that spilled into the pool. I was just wondering if anyone has ever done anything like this where they've modified their existing pool to add a spa and if so, about how much should I expect to pay?