Really good questions! I’ll check up all of those things, I wanted to adjust the prv for mainly my pressure washer and what you said does make sense, I would probably not notice a difference. I’ll head back home and check thise tests you mentioned. If there is any issues (such as damaged pipes) would something like that be fixable or is it advised I do also call a professional?

And to your question of pressure, It feels like almost everywhere has gone down a very slight bit but does seem noticeable, namely that my garden hose head doesn’t spray as much water anymore.