I have two SWG. One for the pool and one for the spa. They are AquaPure by Jandy. I am questioning if they could be wired wrong. I added salt to the Spa yesterday. The manual says to turn off the SWG to 0 percentage for 24 hours after adding salt. So I did. Today my chlorine level was through the roof at 23ppm. The pool however was at 1.5 ppm and last night it was 5. Could it be they are wired opposite? I know this sounds like a stupid question, however, when the percentage is set on the pool, it always reads the same for the spa. So even though I "set" the percentage on the iaqualink app, it shows on the physical boards as the same. In other words if I set the pool to "0" the spa will read "0". So even though I set the spa to "0" after adding the salt, it still read "40" like the pool. Furthermore, I am frequently getting the "120" error code with a general fault message. I'm not familiar enough with my plumbing setup to know how to take the Aquapure apart to clean. I am waiting for the pool service people to do this, so hopefully that will take care of the message. Has anyone had similar problems with this equipment?