philh wrote:
Yes, they are right next to each other.
Pressure switch is kind of what I'm leaning towards. Wondering if the dealer messed with the settings in a misguided diagnosis.
I may just buy a pump this weekend and stop. Learning about accumulators too, even if I do get this fixed, see value in adding one.
The pressure switch should be adjustable. I believe Shurflow has an hex (allen) bolt at the top of the pressure regulator. maybe give it a half or full turn one direction and see what happens. Check both a sink and the shower to see how the different pressure affects it.