I have an existing rectangular pool (18x36), vinal liner and concrete
on all sides around the pool. I would like to add a spa / jacuzzi /
hot tub to my back yard and I would like to somehow build it so it
joins with the pool.

1) Can this be done?
2) Have you seen any sample designs on adding a jacuzzi to a basic
18x36 rectangular pool?
3) Any clue on a range of what this might cost, including
installation? $10K? $50K?

Thanks in advance,
Ken