JD is onto something. Matt, I'm confused about the statement in your first post about 'No Blower'. I don't know anything about spas other than the basic principles and then that's very limited. Looking at the plumbing around the right side blue arrow it looks like there may be water and air lines joined. True? and if so which is which? Adding to what JD said you may try a wet-dry shop vac to suck any water out of those non-working jets and see if the system functions. Fire the pumps up, get the other jets working, then try sucking water from the non-working ones.
Al