Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Boiler Pressure Valves Keep Leaking
I've got a 24 year old Columbia boiler and I keep needing to replace the pressure relief valve. Over the last couple of years I've put on 3 new Watts 374As. Every time I pump the system up to 12lbs., it starts to piss it out like it was Pabst Blue Ribbon.
They were all pretty rusty inside when I replaced them. I guess the 374As weren't solid brass if they rusted. Would an M355 be better? Why do they keep failing?