I'd like to replace my main shut-off valve, but there is a leaky pressure relief valve soldered just above it -- do I need to replace that as well? What is the purpose of the pressure relief valve? Is it for draining the house? I can drain the house easily using a hose bib connected just above the relief valve. Where can I find local plumbing codes? Web/city hall?
The relief valve is just like the one with my water heater. The label says: "Glauber Model RL-P, ANS Z21.22 Valve, 150psi, for max heater input 200,000 btu/hour thermal exp." My house is 30 years old and it looks like the original plumbing. Other houses in my mid-70s neighborhood have the same set-up.
Thanks a ton!
Mike
The relief valve is just like the one with my water heater. The label says: "Glauber Model RL-P, ANS Z21.22 Valve, 150psi, for max heater input 200,000 btu/hour thermal exp." My house is 30 years old and it looks like the original plumbing. Other houses in my mid-70s neighborhood have the same set-up.
Thanks a ton!
Mike