n8martin

Hi RD - thanks for the confirmation. Had to cut away a bunch of sprayed-in insulation to find it, but there it was at the top of the hartford loop.

Hi Friends: I have an air blockage post-blower on a 1992/93 Coleman/CA Cooperidge Spectrum 200 spa. The blower is fine itself. Wondering if there is a check valve on this system, and if so, where in the line it would fall for replacement. I cannot conceive of another reason, aside from a failed check valve, why it would be blocked (debris, collapsed pipe, etc.), but there could be one. I've attached a .pdf of the owner's manual for reference, but it has no insight into its plumbing design or plumbing parts. Thanks in advance for your advice. ~N8 1992-1993-horizon_spectrum.pdf