This comment is not directed at anyone in particular, of course.
The plumber goes in. The T&P valve is leaking. He doesn't have another on his truck, so he just puts a plug in the end and leaves figuring he'll get another one sometime and replace it.
This reminds me of the penny in the Edison base fuse holder of a circuit that keeps blowing, or bypassing a GFCI that is nuisance tripping.
Just maybe the T&P valve was leaking because there was an actual by undetected malfunction of the heater.
Just maybe a GFCI trips because there is a real leak. And we all know that the fuse that keeps blowing is saying that the wires are overloaded.
The T&P valve on the water heater is the only pressure relief valve on many water systems. Capping it when it leaks is a lot like slugging a fuse when it blows.
We simply trust that no one is doing things like these within 465' feet of where we work, walk, or drive..
