Well, I got myself into this project, knowing that there is a leaky pipe somewhere on the spa. Is there any sure fire way of finding it? Brand new to all of this, and just looking to make my day easier.

Pull all the sides off the spa - I know this isn't what you wanted to hear, but it's where you need to go first. Wet stuff=leak.

I agree with pageup pull all the side skirting off and start looking around and see if you can find the drip/leak.

One thing that helps sometimes if you can not see the leak as its happening is to look in the area with the most water damage, sometimes if it is a small drip or very slow leak it will leave a white powder residue on the pipe and you can trace it to the source. i know "common sence".

Good luck, looks like a nice tub.