Do all water heaters have a pressure relief valve of the type
with the handle to test them?
Ours is an oil-fired unit, works great, I drain out hte crud
approxumately monthly, give or take.
I was looking at the pressure relief valve today: There is no
mechanical way of opening or testing it. It doesn't look like
anything has been removed or jerry-rigged; I'm pretty sure it's
the original part, unmodified. But there's no handle or pin or
anything to see if it works or if it's plugged, whatever.
A quick check via Google didn't show me anything that looked
like mine, so thought I'd see what experience here might say.

Should I be looking into this further? I can provide a picture
if necessary - didn't think about taking a pic until just now.

TIA,

Pop
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