Funny enough I was coming back to post I found the leak, 6-8 in cracked pipe from not being winterized, about 1/2 way back from equipment back, spa guy you were nearly dead on, wish I had checked this post more frequently, although I also had to replace a smaller line that was hard a a rock (clear vinyl) from the bottom of the pump, I got lots of foam to put back, gonna try using most of the old foam (that's dry) combined with some new spray foam (I refuse to buy the 80$ repair kit from my dealer) sure it might work better, but I can put 30 cans of this "great stuff" in for that.
Thanks Spa Guy! Hopefully it's just this one pipe, gonna be a nightmare to replace, since I decided to replace the entire line rather than splice it
Brandon