Had a similar issue a while back, but honestly, swapping the regulator didn't do much for me. Turned out the real culprit was the old galvanized pipes...

I've tried targeted root pruning myself and honestly, it felt like playing whack-a-mole—fix one area and another pops up. It bought me some time, but ...

Yeah, that's a really good point. My house was built in the late 60s, and we had similar issues for years—shower going ice cold every time someone flu...