I have found my dream pool. Now, does it actually dial?

I believe that is the Atlantis gate

Yup. More accurately, a Pegasus Galaxy network gate.

I don't know, I think it might be inconvenient to have a portal to other worlds in my back yard ;-)

We have one. It's a fair amount of work, but it's definitely worth it. Plus, pool parties are the best parties :)

And if you have kids old enough, that is their chore if they want to swim in it.

Yup. Spent a lot of summer time vacuuming the pool haha