on 9/5/2007 5:17 PM HeyBub said the following:
kjpro @ usenet.com wrote:

I don't think so. A "slight" leak will generate an icicle.

And can cause a line blockage.
Anyway, it's against code!


Goddamn it! Building codes specifically REQUIRE P&T valves to be vented
outside (or an approved alternate - which never includes UP).



In the event the
line IS blocked with ice, a let-loose pressure valve will blow the
freakin' plug into the next county! Either that, or you'll have the
nastiest pipe-bomb imaginable.

T&P valves aren't designed to "leak" or "relieve excess pressure."

Whether their designed too or not, that doesn't mean it doesn't
happen. You've never saw one that was corroded because it had a slow
leak?
You're showing that you have no experience with PT valves.


I agree they sometimes leak. Just like a water faucet sometimes leaks. What
makes you assume I've never seen a leaky one? How did you reach that
conclusion?



They are
designed to simulate an SLV (Saturn Lauch Vehicle) by blowing all to
hell. They don't tweet like a tea-pot, they go BOOM!

Design and "what happens in the field" is sometimes two completely
different things.


Right. Sometimes fail-safe systems fail by failing to fail safe. Sometimes
fail-safe systems fail because a cretin installed them - as in not venting a
P&T valve to the outside.

What do I do in my house? The Water Heater is in the basement and there
is no exit for a pipe that is not 6' below ground.
The best I can do is to have the T&P pipe dump into a pail with a sump
pump that will get it above ground.
The Water Softener suffers the same restriction and it is across the
cellar from the heater.
This house was approved by an inspector.

--

Bill
In Hamptonburgh, NY
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