On 5/21/2021 7:54 PM, DerbyDad03 wrote:
On Thursday, May 20, 2021 at 11:48:22 PM UTC-4, wrote:
On Thu, 20 May 2021 18:10:27 -0700, Bob F wrote:

On 5/20/2021 4:51 PM, wrote:
About a month ago my water heater (4ish years old) T&P valve popped off and wouldn't re-seal, so I replaced it. No issues for about a month, now it's dripping. I can"burp it" but drips again in a little bit. I'm wondering if I need to turn the temp down, I'ts where ever the factory set it, seems pretty hot. Not overly hot but hot. Thoughts??


Is there an expansion tank associated with this heater? It could have
failed.
That is my guess, if there is even a tank installed.
Back in the olden days the water expanded back into the system but now
they have back flow preventers and the expanded water has nowhere to
go.

Well, it's not a "timing" thing, it's a "system" thing.

Not all houses, even in these modern times, have backflow preventers.


Yeah, but most new ones do, especially if you have irrigation. My gas
fired water heat has an expansion tank too. Thousands of house built
here have them. Unheard of years ago it is now code many places.