About this part…
I rallied last night and soldered the hot water side. Did a pressure test and the pressure relief valve started squirting, hard (at the designated 75psi it was designed to do. A part I replaced as the other got crudded up over time and wasn’t holding pressure).
Ah yes, the pressure regulator switch. I struggled with the original 25 years ago for a variety of reasons. Reboot.
I have some un and redoing to work on, then some wiring. This oughta do it though!
DeedleDoodleDaily 